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Genetics Test

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Last updated about 7 years ago
28 questions
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Question 1
1.

If both parents are homozygous dominant for brown eyes. What is the probabitility of them having a child with blue eyes?

Question 2
2.

What did Gregor Mendel do to study different characteristics in his genetics experiments?

Question 3
3.

Factors that control traits are called

Question 4
4.

Scientists call an organism that has two different alleles for a trait a

Question 5
5.

An organism’s physical appearance is its

Question 6
6.

Scientists call an organism that has two different alleles for a trait a

Question 7
7.

What is probability?

Question 8
8.

What is the probability of producing a tall pea plant from a genetic cross between two hybrid tall pea plants?

Question 9
9.

An organism’s genotype is its

Question 10
10.

An organism that has two identical alleles for a trait is

Question 11
11.

What does a Punnett square show?

Question 12
12.

If a homozygous black guinea pig (BB) is crossed with a homozygous white guinea pig (bb), what is the probability that an offspring will have black fur?

Question 13
13.

A heterozygous organism has

Question 14
14.

The passing of traits from parent to offspring is called

Question 15
15.

An offspring will receive how many alleles from each parent to determine a specific trait?

Question 16
16.

A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?

Question 17
17.

Which of the following genotypes is a purebred?

Question 18
18.

Scientist, farmers, and ranchers breed the organisms that have the genes they are wanting. Which process are they using?

Question 19
19.

All of the following statements are reasons for selective breeding except:

Question 20
20.

Which of the following are benefits of gene modification?

Question 21
21.

Natural Selection = Nature made Artificial Selection = Man made

Question 22
22.

With asexual reproduction, the offspring are not identical to the parents.

Question 23
23.

Recessive alleles are represented by a capital letter.

Question 24
24.

A hybrid is the offspring of parents that have different alleles for a trait.

Question 25
25.

In pea plants, green pod color is controlled by a dominant allele. Yellow is controlled by a recessive allele. Explain why a plant with yellow pods can never be a hybrid.

Question 26
26.

Artificial selection has many uses in the agriculture world. What are some concerns about using artificial selection with humans? Is it always ok to use with plants and animals?

Question 27
27.

In pea plants, the allele for smooth pods (S) is dominant over the allele for pinched pods (s). Construct a Punnett square that shows a cross between an SS plant and an Ss plant. Predict what percent of the offspring are likely to have smooth pods.

Question 28
28.

Use the punnett square above. What is the missing genotype?