Genetics Review!

Question 01 Two white sheep produce a black offspring. Which is the dominant color?

The dominant color is White. Answer 01 The dominant color is White.

What are the three alleles for blood type? Question 02 What are the three alleles for blood type?

Answer 02 A, B, and O

Blood type is an example of what type of inheritance? Question 03 Blood type is an example of what type of inheritance?

Answer 03 Co-dominance

What is it called when an organism has two different alleles? Question 04 What is it called when an organism has two different alleles?

Heterozygous Or Hybrid Answer 04 Heterozygous Or Hybrid

Question 05 Two white sheep produce one black offspring. What must the parents’ genotype for color be? [Show your Punnett Square]

The parents genotype must be both hybrid (Wb and Wb) Answer 05 The parents genotype must be both hybrid (Wb and Wb)

Question 06 Two white sheep produce one black offspring. What is the probability that the next offspring will be black?

There is a 25% chance that the next offspring will be black. Answer 06 There is a 25% chance that the next offspring will be black.

Different forms of a trait that make up a gene pair are called what? Question 07 Different forms of a trait that make up a gene pair are called what?

Answer 07 Alleles.

Sections of chromosomes that code for our traits are called what? Question 08 Sections of chromosomes that code for our traits are called what?

Answer 08 Genes.

What is it called when an organism has two of the same alleles? Question 09 What is it called when an organism has two of the same alleles?

Homozygous or Purebred Answer 09 Homozygous or Purebred

Question 10 This is the genetic material that makes up chromosomes. [Spell the answer correctly]

DNA Deoxyribonucleic Acid Answer 10 DNA Deoxyribonucleic Acid

Question 11 Albinism is caused by a recessive gene. If parents that are normal for skin color have an albino child, what is the probability that their next child will be normal for skin color?

Answer 11 75 %

Question 12 In the babies project, why did the males flip the coin to determine the gender of the child?

Answer 12 Because in real life, the sperm (either an X or Y sperm) determines the gender of the child.

Question 13 A black cat and a tan cat mate and form a tabby cat. What is this an example of?

Answer 13 Co-Dominance.

A black cat and a tan cat mate and form a tabby cat. Question 14 A black cat and a tan cat mate and form a tabby cat. Which allele is dominant?

Neither allele is dominant . Answer 14 Neither allele is dominant .

Question 15 In a cross between a black Rhino and a white Rhino, the offspring will be gray. This is an example of?

Incomplete Dominance (There is a blending of traits) Answer 15 Incomplete Dominance (There is a blending of traits)

Question 16 Widows peak hairline in humans is dominant to a straight hairline. If a person has a widows peak hairline, which of the following could she be? -Homozygous dominant -Homozygous recessive -Heterozygous

She could be either homozygous dominant or heterozygous. Answer 16 She could be either homozygous dominant or heterozygous.

The name for the way an organism looks or behaves. Question 17 The name for the way an organism looks or behaves.

Answer 17 Phenotype

The name for an organism’s specific genetic make-up. Question 18 The name for an organism’s specific genetic make-up.

Answer 18 Genotype.

Question 19 A yellow flower and a blue flower exhibit incomplete dominance, and produce green flowers. If two green flowers are bred, what will their offspring look like? [Show your Punnett Square]

25% will be blue, 25% will be yellow, and 50% will be green. Answer 19 25% will be blue, 25% will be yellow, and 50% will be green.

What was Mendel’s occupation, other than being a scientist? Question 20 What was Mendel’s occupation, other than being a scientist?

Answer 20 He was a monk.

What were Punnetts years of birth and death? Question 21 What were Punnetts years of birth and death?

Answer 21 1875-1967 (91 years old)

Question 22 In the babies project, name 3 dominant traits that are common in humans.

Dimples, Freckles, Widow’s Peak, Free Ear Lobes… etc. Answer 22 Dimples, Freckles, Widow’s Peak, Free Ear Lobes… etc.

Question 23 In the babies project, which hair color consisted of 4 recessive genes?

Answer 23 Pale Yellow Blonde

How many base pairs are in the human genome? Question 24 How many base pairs are in the human genome?

Answer 24 3 Billion!!!!