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EOC PRACTICE QUESTIONS #2
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Bio 3.1 - Explain how traits are determined by the structure and function of DNA.
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DNA and RNA are both made up of _______________which contain a __________,___________, and a __________________. Nucleotides 5-Carbon Sugar phosphate group nitrogen base
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The sugar in DNA is _________ and in RNA is ____________.
Deoxyribose Ribose
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The bases in DNA are: Adenine Thymine Guanine Cytosine
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The bases in RNA: Adenine Uracil Guanine Cytosine
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DNA shape is a ___________(twisted ladder)
double helix
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RNA shape is: single stranded
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RNA has 3 forms: - Carries the DNA code from the nucleus to the ribosome ______. - Carries the amino acid from the cytoplasm to the ribosome ______. - Place where the amino acids are put together to make a protein. ________. messenger-RNA (M-RNA) transfer-RNA (T-RNA) ribosomal-RNA (R-RNA)
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Chromosomes in the nucleus of eukaryotic cells contain ___________and _____________.
nucleic acids protein
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DNA is the genetic information in the nucleus that codes for the production of ______________.
proteins
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DNA Replication (Copy, Synthesize, Duplicate, Complimentary Base Pairs) occurs in the ___________,
nucleus
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The weak bond that holds together the complimentary base pairs in DNA are ____________________.
hydrogen bonds
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Replicated DNA contains one old strand that serves as a template and one new strand making it _______________. semiconservative
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Replication must occur prior to any type of cell division so that each daughter cell has a __________ to run the cell. copy of DNA
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The stage of the cell cycle that DNA is replicated in is the _______ of _______.
S-phase Interphase
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The process that converts the DNA code into messenger RNA so that it can leave the _____is called ________. nucleus transcription
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The process the converts messenger RNA into a protein is called _________ and occurs at the _____________. Translation ribosome
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Name the process, then tell where the process takes place.
Replication Nucleus Transcription Nucleus Translation Ribosome
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A series of three nitrogen bases on messenger RNA is called a ______.
codon
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A series of three nitrogen bases on transfer RNA is called an _______.
anticodon
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Replicate TCC-AGT-TAG
AGG-TCA-ATC
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Transcribe TCC-AGT-TAG into mRNA.
AGG-UCA-AUC
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Translate the mRNA into a protein - AGG-UCA-AUC
Arginine-Serine-Isoleucine
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If the anticodon on T-RNA reads UGC, what amino acid does it code for?
ACG Threonine
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A random change in a DNA sequence is called a ______________.
mutation
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Radiation, radon, asbestos, chemicals are all ______________.
mutagens
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There are two types of mutations: _______ and ___________.
Point Frame shift
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True or False - Most mutations are harmful.
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Identify the following types of frame shift mutations by labeling them as inversion, deletion, duplication or translocation. Original DNA Sequence – ABCDEF ADEF ABCXYZ AEDCBF ABBCDEF Deletion Translocation Inversion Duplication
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Bio Analyze how cells grow and reproduce in terms of interphase, mitosis and cytokinesis. Bio Explain the role of meiosis in sexual reproduction and genetic variation.
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Cells must divide due to __________ratio and lack of ____to tell the cell what to do.
surface area to volume DNA
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Cells have to divide to allow an organism to: _____, _____ injuries, and ______.
Grow Repair Reproduce
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Part of the cell cycle where the cell spends the majority of its life cycle growing and synthesizing DNA is _________. Interphase
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The stages in mitosis are : ________
PMAT Prophase Metaphase Anaphase Telophase
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Label the diagrams below.
A. Telophase B. Metaphase C. Prophase D. Anaphase
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This is when the nucleus divides: ____
Mitosis
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The division of the cytoplasm is called _____________.
cytokinesis
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In plant cells a ___________forms during cytokinesis for the cell wall to develop. In animal cells a ___________forms. cell plate cleavage furrow
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Type of division that makes haploid cells ____________.
Meiosis
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Type of division the makes diploid cells ___________.
Mitosis
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Type of division that occurs in somatic or body cells ___________.
Mitosis
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Type of division that occurs to form gametes _________.
Meiosis
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Type of division that makes 4 daughter cells ____________.
Meiosis
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Type of division that makes 2 daughter cells __________.
Mitosis
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Type of division that has two divisions ___________.
Meiosis
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Type of division that is one division ____________.
Mitosis
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Type of division that is asexual ______.
Mitosis
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Type of division that is sexual ______.
Meiosis
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Type of cell division that is does not allow for variation _______.
Mitosis
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Type of cell division that allows for variation _________.
Meiosis
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___________and _____________allow for genetic variation.
Crossing over fertilization
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Name the processes below.
Mitosis Meiosis
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____________and __________ cause changes in DNA
Gene Shuffling (crossing over and fertilization) mutations
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Human gametes contain __________chromosomes.
23 (22X or 22Y)
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Human somatic cells contain_________ chromosomes.
46 (44XX or 44XY)
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Type of cell in the human that undergoes the most rapid mitosis is _________.
skin
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The __________ holds sister chromatids together when DNA replicates during the S-phase of interphase. centromere
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Label the following types of asexual reproduction.
Vegetative Propagation Regeneration Binary Fission Sporulation
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Chromosomes that are the same length, centromere is in the same location, and the same traits are called _______________. homologous pairs
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These pairs line up during synapsis of prophase 1 of meiosis and gene shuffling occurs in the process called ______________. crossing over
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If a corn anther contains 20 chromosomes in the cells, how many chromosomes will the pollen cell have? 10
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_________is the process in which the gametes unite forming a ________.
Fertilization zygote
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Label the stages of human development below
Fertilization Zygote Cleavage due to Mitosis Blastula (stem) Gastrula (differentiation)
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This is a diagram of __________.
crossing over during meiosis
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Gametogenesis in a male is called ______. It occurs in the _________
Gametogenesis in a male is called ______. It occurs in the _________. ______sperm are produced. Spermatogenesis Testes 4
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Gametogenesis in a female is called _________
Gametogenesis in a female is called _________. It occurs in the ________. ____________are produced. Oogenesis Ovaries 1 egg and 3 polar bodies
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Bio Predict offspring ratios based on a variety of inheritance patterns (including dominance, co-dominance, incomplete dominance, multiple alleles, and sex-linked traits).
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The transmission of genes from parent to offspring is called _________.
heredity
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A unit of hereditary information is called a __________.
gene
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Different forms of a gene are called ___________.
alleles
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Two of the same alleles is called _______________.
homozygous or pure
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Two different alleles is called _____.
heterozygous or hybrid
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The bossy allele that always shows itself and masks the other alleles is __________.
Dominance
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The quiet allele that only shows itself when paired with itself is the _______.
Recessive
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An organisms genetic make-up (actual genes) is its ______________.
genotype
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An organisms physical characteristics are its _______________.
phenotype
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Results in a phenotype where the two dominant alleles show up equally ____________.
codominance
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Results in a blended phenotype _____.
incomplete dominance
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Cross used to determine the genotype for a known phenotype ________.
test cross
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Type of organism always used in a test cross because it has a known genotype and phenotype.
homozygous recessive
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How can two organisms have the same phenotype yet different genotypes?
One is homozygous dominant and one is heterozygous
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Mendel’s principle that the alleles separate during meiosis _______.
Principle of Segregation
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Mendel’s principle that the bossy gene always wins
Principle of Dominance
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Mendel’s principle that the alleles separate independently of each other
Principle of Independent Assortment
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Cross involving one trait
monohybrid
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Cross involving two traits
dihybrid
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The likelihood an event will occur is called ______________.
probability
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Probability (is / is not) based on prior events.
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The Probability that a woman will have three boys in a row is ________.
½ x ½ x ½ = 1/8
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Tall is dominant over short in pea plants. Cross two hybrid plants
Tall is dominant over short in pea plants. Cross two hybrid plants. What is the genotypic ratio? What is the phenotypic ratio? 1:2:1 3:1
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Short tails (S) are dominant to long tails (s)
Short tails (S) are dominant to long tails (s). Brown hair (B) is dominant to White hair (b). What is the unknown parent’s genotype for the cross below? SsBb
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For the cross below, how many of the offspring will be Short tailed and Brown?
9/16
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For cross below, how many of the offspring will be Short tailed and white?
3/16
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For cross below, how many of the offspring will be Long tailed and Brown?
3/16
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For cross below, how many of the offspring will be Long tailed and White?
1/16
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That makes the phenotypic ratio for this cross ______________.
9:3:3:1
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In camellias there are red flowers, white flowers and red and white flowers. Is this an example of incomplete or codominance? Codominance
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Cross a heterozygous red and white flower with a white flower and give the genotypic and phenotypic outcomes genotype 50% RR’ and 50% R’R’ phenotype 50%Red and White and 50% White
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In snapdragons there are red flowers, white flowers and pink flowers
In snapdragons there are red flowers, white flowers and pink flowers. Is this an example of incomplete or codominance? Incomplete Dominance
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Cross two heterozygous flowers and give the genotypic and phenotypic outcomes
Genotypic ratio 1:2:1 phenotypic ratio 1:2:1
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A dog with black fur (B) produces a litter of puppies in which 50% of the puppies are black and 50% are white (b). What is the genotype of the parent ? Bb
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List the genotypes and phenotypes of blood types
AB O Genotypes IAIA, IAi IBIB, IBi IAIB ii
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Is it possible for a mom with blood type A and a dad with blood type B to have a child with O blood? ____How? Yes IAi x IBi
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Cross a type A mother whose mother had O blood with a father that has AB blood. Give the possible phenotypic outcomes. 50%A 25%B 25%AB
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A trait that shows up only on the sex chromosomes is considered to be
sex-linked
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Two sex-linked diseases are
Colorblindness Hemophilia
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The sex chromosomes of a female are _____and a male are _____.
XX XY
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______inherit sex-linked traits most often
______inherit sex-linked traits most often. They get them from their _____. Sons Moms
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Cross a colorblind female with a normal male
Cross a colorblind female with a normal male. What is the probability the offspring will be colorblind? 50% of the offspring, 100% of the boys
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Is it possible for a carrier female to have a daughter that is color blind? _____ If so how?
Yes The father must be colorblind
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A family tree is called a ________.
pedigree
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The symbol for a male is a _____ and for a female is a _______.
Square circle
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If they have the disease the symbol is _________.
colored in
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What are the genotypes for each of the people on these pedigrees?
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Which would represent colorblindness or hemophilia?
Sex-linked recessive
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Which would represent sickle cell or cystic fibrosis?
Autosomal Recessive
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Which would represent Huntington’s disease or Achondroplasia?
Autosomal Dominant
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The diagram below is called a _____. It is a picture of ________
The diagram below is called a _____. It is a picture of ________. The person in the diagram below is a Male/Female. Karyotype homologous pairs Female
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The person has the genetic disorder _________ , also called _________
The person has the genetic disorder _________ , also called _________. This is caused by the failure of chromosomes to separate correctly which is called _____. Down’s Syndrome Trisomy 21 nondisjunction
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Genetic disorder characterized by abnormal shape of red blood cell that make them unable to carry oxygen is ______. People who are heterozygous are immune to the mosquito carrying disease called ______________. sickle cell anemia malaria
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Genetic disorder that leads to the buildup of a thick mucus in the lungs is _____.
cystic fibrosis
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Skin color, eye color, height are determined by many genes and are called _________ traits. The phenotype that shows up more frequently are blended. polygenic
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Which diagram represents fertilization that will develop into a normal female zygote?
1
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____________determined all sequence of all the alleles in humans.
Human Genome Project
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_________is the process of making changes in the DNA code of organisms.
Genetic Engineering
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A circular piece of DNA found in bacteria is called a _________.
plasmid
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The combination of genetic material from 2 or more organisms is called ________.
recombinant DNA - rDNA
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__________cut the DNA at the same sequence on different strands of DNA.
Restriction enzymes
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_________puts the two new pieces back together.
DNA ligase
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This technology is used to make ______and ________.
Insulin human growth hormone Bt corn Clotting factor Drought and insect resistant crops
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Bacteria are used in genetic engineering because they reproduce ________ (no variation) and _______. The DNA is then transcribed and translated producing the __________. Asexually Rapidly protein
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Organisms that have genes from another organism are called ______
Organisms that have genes from another organism are called ______. BT corn is an example. transgenic organism
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The below is a picture of ________.
recombinant DNA (r-DNA)
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The diagram below is called _______.
Gel Electrophoresis or DNA Fingerprinting Who are the soldiers parents? C&D
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Fruits and vegetable with longer shelf lives and cows producing more milk are examples of
Selective breeding or artificial selection Genetic Engineering
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The _________ makes many copies of a DNA sequence in a short amount of time
polymerase chain reaction
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_____________inserts normal gene sequences through inhalers into people with diseases like cystic fibrosis so that correct protein sequences may be produced. Gene therapy
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