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What does DNA stand for? Deoxyribonucleic Acid
_______ is the enzyme that chemically links Okazaki fragments together DNA Ligase
What is located at the BOTTOM of a tRNA molecule? Anti-codon sequence
Where in the cell is DNA found? Nucleus
Scientifically, describe the shape of the DNA molecule. Double Helix
What is a benefit of semiconservative DNA replication? Helps reduce the number of copying errors
Why is transcription important? Gets the DNA code out of the NUCLEUS!
What is located at the top of tRNA? Amino acid
What are the 2 types of purines? Adenine, Guanine
What is the complement to this side of a DNA molecule?: TGGACTA ACCTGAT
How many pairs of chromosomes does a human have in their body cells? 23
How many hydrogen bonds are found between A-T? 2
Where can mRNA be found? Nucleus, cytoplasm, ribosome
A segment of DNA that codes for a protein is called a ______ Gene
What are the 3 parts of the DNA molecule? Phosphate group Deoxyribose Sugar Nitrogen Base
______is the DNA strand that is discontinuously built into small Okazaki fragments during replication Lagging Strand
What sugar is present in RNA? ribose
What type of replication occurs when DNA replicates? Semiconservative Replication
______________ are short segment of DNA synthesized discontinuously in small segments in the 3’-5’ direction by DNA polymerase. Okazaki Fragments
What nitrogen bases are present in RNA? A, U, C, G
What is chromatin? Uncoiled DNA
What type of bond holds together the nitrogen bases? Hydrogen
What scientists are credited with the “base-pairing” rules? Watson & Crick
DNA that is coiled would be called? Chromosome
When does the DNA replicate? Cell division/Interphase (before mitosis)
In what direction can DNA synthesis only occur? 5’-3’
How many hydrogen bonds are found between C-G? 3
Going from mRNA to a protein is called _______. Translation
During DNA replication, what causes the hydrogen bonds to break? An Enzyme (DNA Helicase)
What is the tRNA complement to this mRNA?: AUGCAU UACGUA
What is located at bottom of tRNA? Anti-codons
Who discovered DNA in 1928? Frank Griffith
What polymer makes up or hair color, bone length, etc..? Protein
What is the shape of mRNA? Single helix
What are the 2 types of pyrimidines? Thymine, Cytosine
What is the function of tRNA? tRNA anticodons bond w/ mRNA codons to insure the correct order of amino acids
_______ is the enzyme runs along the parent chain of DNA and bonds free floating nucleotides to those of the parent (original) chain-- based on base pairing rules DNA Polymerase
What sugar is present in DNA? Deoxyribose
What does RNA stand for? Ribonucleic Acid
How many strands of mRNA are transcribed from the two “unzipped” strands of DNA? 1
What nitrogen bases are present in DNA? A, T, C, G
How is the accuracy of the DNA code assured? Base-pairing rules
_________ is the DNA strand that is continuously built by the addition of nucleotides to the 3’ end during replication Leading Strand
Going from DNA to mRNA is called _________. Transcription
What is the mRNA complement to this side of a DNA molecule: AACGTAT UUGCAUA
How does the mRNA get out of the nucleus? Nuclear pore
Identify this molecule. DNA
What is located at the TOP of a tRNA molecule? Amino acids
Where does translation occur? Ribosome
What is the function of mRNA? To get the DNA code out of the nucleus
What are proteins made up of? Amino acids
Where must the mRNA attach before protein production can begin? Ribosome
Where does transcription occur? Nucleus
Identify this molecule. tRNA
How many nitrogen bases make up a mRNA codon? 3
What type of bond is formed between amino acids during translation? Peptide bond
Identify this molecule. mRNA
What is the function of rRNA? Creates peptide bonds between the amino acids
Standard IV-2 DNA, RNA and Proteins
What does DNA stand for? Deoxyribonucleic Acid.
Nucleic Acids and Protein Synthesis
DNA Proteins are found in all ________ ________ Are species specific/ individual specific (transplant rejections) Importance of DNA Chromosome: DNA + ____.
DNA and RNA. I. DNA Structure Double Helix In the early 1950s, American James Watson and Britain Francis Crick determined that DNA is in the shape of.
1 2 Nucleic Acid History 3 Nucleic Acid Structure.
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Nucleic Acids & Proteins Units 5 & 6. Nucleic Acids Nucleic Acids are Polymers made of Nucleotides 3 Parts: a)Phosphate group b)5-Carbon Sugar c)Nitrogen.
Bell Work GCCTTA What would be the DNA compliment of the section of DNA above? a. CGGAAT b. CGGUUT c. ATTCCG d. TAAGGC.
DNA: THE CODE OF LIFE.
DNA & Genetics Biology. Remember chromosomes? What are genes? Made up of DNA and are units of heredity; unique to everyone What are traits? Are physical.
1. What is this structure? 2 DNA! DNA (deoxyribonucleic acid); which stores and provides the information that our body needs to make the various proteins.
Mrs. Degl Molecular Genetics DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a.
KEY CONCEPT DNA structure is the same in all organisms.
DNA Replication, Transcription and Translation Structure of DNA and RNA DNA Deoxyribonucleic Acids are nucleotides made of: –Base pairs (Adenine, Thymine,
DNA Structure and DNA Replication How cells make a copy of their DNA before they divide.
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