Quiz about Genetics Review - Biology

Question 1

Gregor Mendel used pea plants to study

Accepted Answer

Inheritance of traits

Answer

flowering

Answer

cross-pollination

Question 2

If a Heterozygous Rr pea plant is crossed with a Homozygous rr pea plant, what would be the percentage that the offspring will be recessive rr?

Accepted Answer

50%

Answer

75%

Answer

25%

Question 3

If a Mother with Type A (Ao) blood and a father with type O (oo) blood have children, what would be the percentage that their offspring would be Type B blood?

Accepted Answer

0%

Answer

50%

Answer

35%

Question 4

Organisms that have 2 of the same alleles for a particular trait are said to be

Accepted Answer

homozygous

Answer

heterozygous

Answer

hybrid

Question 5

When 2 dominant alleles (HB) are both expressed are said to be

Accepted Answer

codominant

Answer

diploid

Answer

incomplete dominant

Question 6

A pea plant that has 2 different alleles for the same trait is said to be

Accepted Answer

Heterozygous

Answer

Homozygous

Answer

Phenotype

Question 7

How many recessive alleles for a trait must an organism inherit in order to show that trait?

Accepted Answer

2

Answer

3

Answer

1

Question 8

How many children will have the disease?  (look at the picture to help you)

Accepted Answer

2

Answer

1

Answer

0

Question 9

How many girls will be carriers?

Accepted Answer

1

Answer

0

Answer

2

Question 10

What percent of children will be normal?

Accepted Answer

50%

Answer

25%

Answer

0%

Question 11

A characteristic that is passed from parents to offspring is called a ____

Accepted Answer

Trait

Answer

Allele

Answer

Gene

Question 12

Small Pieces of DNA are called ______.

Accepted Answer

Genes

Answer

Traits

Answer

Alleles

Question 13

Different forms of a gene are known as

Accepted Answer

Alleles

Answer

Dominant

Answer

recessive

Question 14

The gene combination Hh is_____

Accepted Answer

Heterozygous

Answer

Homozygous

Answer

Recessive

Question 15

Which of the following is an example of a heterozygous genotype?

Accepted Answer

Aa

Answer

AA

Answer

aa

Question 16

A woman has blood type O (oo) and she marries a person with blood type AB. What possible blood types can the children have?

Accepted Answer

Type A; Type B

Answer

Type A; Type B; Type AB

Answer

Type O, Type AB

Question 17

A woman has blood type O (oo) and she marries a person with blood type AB. The baby has blood type AB.  Is it possible this is the father of the baby?

Accepted Answer

no

Answer

yes

Question 18

What does RR represent?

Accepted Answer

red

Answer

pink

Answer

white

Question 19

What does rr represent?

Accepted Answer

white

Answer

red

Answer

pink

Question 20

What is the genotype of the pink flowers?

Accepted Answer

Rr

Answer

RR

Answer

rr

Question 21

What do the alleles show in the picture?

Accepted Answer

Incomplete dominance

Answer

Codominance

Answer

Dominance

Question 22

If 1 red and 1 white flower is crossed, what percent of their offspring are expected to be pink-flowers?

Accepted Answer

100%

Answer

50%

Answer

75%

Question 23

If a pink flower is crossed with a pink flower, what percent of their offspring are expected to be pink-flowered?

Accepted Answer

50%

Answer

25%

Answer

75%

Question 24

When constructing a pedigree, what does a circle represent?

Accepted Answer

female

Answer

male

Question 25

How many people have the trait?

Accepted Answer

2

Answer

1

Answer

3

Question 26

How many are affected in the 2nd generation?

Accepted Answer

3

Answer

1

Answer

2

Question 27

How many generations are in the pedigree?

Accepted Answer

3

Answer

1

Answer

2

Question 28

How many males have the trait?

Accepted Answer

2

Answer

1

Answer

3

Question 29

Genetic Drift is a change in allele frequency due to

Accepted Answer

chance

Answer

natural selection

Answer

artificial selection

Question 30

Dominant alleles are represented by a:

Accepted Answer

capital letter

Answer

Male gene

Answer

lowercase letter

Answer

recessive trait

Question 31

Aa, DD, bB, yy are all examples of

Accepted Answer

genotypes

Answer

phenotypes

Question 32

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

Accepted Answer

dominant

Answer

recessive

Answer

lower case letter

Answer

both

Question 33

What you see, or the physical appearance.

Accepted Answer

Phenotype

Answer

Genotype

Answer

Homozygous

Answer

Heterozygous

Question 34

Which of the following is a phenotype?

Accepted Answer

red hair

Answer

Aa

Answer

heterozygous

Answer

DNA

Question 35

Which of the following genotypes is homozygous dominant?

Accepted Answer

AA

Answer

A

Answer

Aa

Answer

aa

Question 36

Which of the following genotypes is heterozygous?

Accepted Answer

Bb

Answer

BB

Answer

bb

Answer

B

Question 37

How many boxes would say BB?

Accepted Answer

0

Answer

1

Answer

2

Answer

4

Question 38

Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?

Accepted Answer

Hybrid

Answer

Purebred

Question 39

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

Accepted Answer

25%

Answer

0 %

Answer

50%

Answer

75%

Question 40

G = green, g = yellow
The genotype for a yellow plant is...

Accepted Answer

gg

Answer

GG

Answer

Gg

Answer

all of the choices result in yellow

Genetics Review - Biology

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