Quiz about Lep Punnett

Question 1

What is a punnett square?

Accepted Answer

graph used to predict the possible genotypes of offspring in a given cross

Answer

a graph used to predict the possible birth rate of offspring.

Answer

a graph used to predict the possible behavioral characteristics an offspring could have

Answer

None of the above

Question 2

In a punnet square where are the parent alleles written?

Accepted Answer

outside of the boxes (top and left side)

Answer

Top and inside the boxes

Answer

Only on the left and right side of the boxes.

Answer

All on the top side of the boxes

Question 3

What are the possible genotypes for this cross?
(Click the picture to see it without the text)

Accepted Answer

TT = 25% Tt= 50% tt=25%

Answer

all tall

Answer

TT= 75% tt = 25%

Answer

Tt = 100%

Question 4

What is the yellow seed genotype?

Accepted Answer

AA or Aa

Answer

aa

Answer

Aa

Answer

AA

Question 5

What genotype would go in box 2?

Accepted Answer

Bb

Answer

BB

Answer

bb

Question 6

What genotype would go in box 3?

Accepted Answer

Bb

Answer

BB

Answer

bb

Question 7

What genotype would go in box 1?

Accepted Answer

BB

Answer

Bb

Answer

bb

Question 8

What allele combination should go in the missing box?

Accepted Answer

Aa

Answer

AA

Answer

aa

Answer

none of these

Question 9

This is an example of ___________?

Accepted Answer

Incomplete dominance

Answer

Co-Dominance

Question 10

Why are there no white rabbit babies?

Accepted Answer

It takes two recessive genes to show the trait.

Answer

The white gene is not present in any of the babies.

Answer

Grey is a better color.

Answer

Baby five will be white.

Question 11

Which of these Punnett squares represents a cross between a homozygous dominant parent and a heterozygous parent?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 12

In a certain breed of cats, having black hair is the result of two dominant alleles for hair color (HH). The heterozygous genotype (Hh) produces a cat that has black and white spots. Having two recessive (hh) genes results in a white-haired cat. In the Punnett square below, what are the phenotypes of the parent cats?

Accepted Answer

1 black cat and 1 spotted cat

Answer

2 spotted cats

Answer

2 black cats

Answer

1 spotted cat and 1 white cat

Question 13

In a certain breed of cats, having black hair is the result of two dominant alleles for hair color (HH). The heterozygous genotype (Hh) produces a cat that has black and white spots. Having two recessive (hh) genes results in a white-haired cat. What is the chance that the parent cats in the Punnett square below will have an offspring with spotted fur?

Accepted Answer

50%

Answer

0%

Answer

25%

Answer

75%

Answer

100%

Question 14

Fruit flies can either have a brown body or a black body. The allele for a brown body is completely dominant over the allele for a black body. A brown fruit fly was crossed with a black fruit fly as shown. What is the probability of a resulting offspring having a black body?

Accepted Answer

0%

Answer

25%

Answer

50%

Answer

75%

Answer

100%

Question 15

What chance does the offspring have of showing a recessive trait?

Accepted Answer

25%

Answer

50%

Answer

75%

Answer

100%

Question 16

The genotypic percentage resulting from this this cross would be _____________________.

Accepted Answer

BB = 25% Bb = 50% bb = 25%

Answer

25% blue eye 75 % brown eye

Answer

BB= 50 % bb = 50%

Answer

All brown eye

Question 17

Two heterozygous parents produce offspring. What is the probability of the HOMOZYGOUS DOMINANT GENOTYPE appearing in the offspring generation?

Accepted Answer

25%

Answer

75%

Answer

50%

Answer

100%

Question 18

HH crossed with Hh. What is the probability of hh?

Accepted Answer

0%

Answer

25%

Answer

50%

Answer

100%

Question 19

What type of inheritance do two alleles have if their traits blend together?

Accepted Answer

Incomplete Dominance

Answer

Co-Dominance

Question 20

When one allele is not dominant over another, resulting in a blended phenotype for heterozygous offspring is considered....

Accepted Answer

Incomplete Dominance

Answer

Codominance

Question 21

When one allele is not dominant over the other, resulting in both traits expressed in a heterozygous individual.....

Accepted Answer

Codominance

Answer

Incomplete Dominance

Question 22

A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?

Accepted Answer

100%

Answer

0%

Answer

25%

Answer

50%

Question 23

The image above shows the incomplete dominant cross where D codes for straight hair in dogs and d codes for curly hair in dogs. The incomplete dominant trait is wavy hair. Which of the following statements is true about the offspring?

Accepted Answer

Only the heterozygous genotype can code for wavy hair.

Answer

Only the homozygous dominant genotype can code for wavy hair.

Answer

Only the homozygous recessive genotype can code for wavy hair.

Answer

The homozygous recessive and homozygous dominant genotypes can code for wavy hair.

Question 24

This punnett square shows a cross between

Accepted Answer

Two homozygous parents

Answer

A hybrid Parent and a Homozygous parent

Answer

A heterozygous parent and a heterozygous parent

Answer

Two Hybrid Parents

Question 25

Purebred is another word for __________, while hybrid is another word for __________.

Accepted Answer

homozygous; heterozygous

Answer

dominant; recessive

Answer

recessive; dominant

Answer

heterozygous; homozygous

Question 26

In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being purple?

Accepted Answer

100%

Answer

25%

Answer

0%

Answer

50%

Question 27

In chickens, feather color is codominant.  If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?

Accepted Answer

50%

Answer

0%

Answer

25%

Answer

100%

Question 28

this image is an example of

Accepted Answer

codominance

Answer

dominance

Answer

incomplete dominance

Question 29

T - tall and t = short
In the punnett square below, what belongs in the missing square

Accepted Answer

tt

Answer

Tt

Answer

Bb

Answer

TT

Question 30

B = brown fur b = white fur
In the punnett square, what is the probability for white fur?

Accepted Answer

50%

Answer

0%

Answer

25%

Answer

75%

Question 31

How many boxes would say BB?

Accepted Answer

0

Answer

1

Answer

2

Answer

4

Question 32

Brown is dominant to green. What is the probability of these parents having green offspring?

Accepted Answer

2/4

Answer

1/4

Answer

3/4

Answer

4/4

Question 33

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 34

In some animals, brown eyes (B) are dominant over blue eyes (b). Which of these genotypes will complete the Punnett Square to the right?

Accepted Answer

Bb

Answer

B

Answer

bb

Answer

BB

Question 35

Which of the following correctly states the genotype probabilities for the offspring of the parents shown in this punnett square?

Accepted Answer

50% heterozygous 25% homozygous recessive 25% homozygous dominant

Answer

50% heterozygous 50% homozygous dominant

Answer

50% heterozygous 50% homozygous recessive

Answer

100% heterozygous

Question 36

A green pea plant (Gg) is crossed with a yellow pea plant (gg). Describe the genotype of the offspring. (Be sure to remember that the capital letter is dominant).

Accepted Answer

50% heterozygous and 50% homozygous recessive

Answer

50% heterozygous and 25% homozygous recessive

Answer

100% homozygous recessive

Answer

25% heterozygous and 50% homozygous

Question 37

A white flower (rr) is crossed with a white flower (rr). What is the genotype of the offspring? Draw a Punnett square and answer the question.

Accepted Answer

100% homozygous recessive

Answer

100% homozygous dominant

Answer

100% heterozygous dominant

Answer

100% heterozygous recessive

Question 38

Which of the following is homozygous dominant?

Accepted Answer

MM

Answer

Jj

Answer

Rr

Answer

ee

Question 39

In plants, tall (T) is dominant to short (t).

Draw a punnett square and perform the following cross: Tt x Tt

What is the probability of producing a short plant?

Accepted Answer

25%

Answer

0%

Answer

50%

Answer

75%

Question 40

A heterozygous yellow pea plant's genotype would be:

Accepted Answer

Yy

Answer

YY

Answer

yy

Answer

Yg

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