Quiz about Genetics: Heredity, Traits, & Inheritance

Question 1

Which of the following genotypes is heterozygous?

Accepted Answer

A) Bb

Answer

B) B

Answer

C) bb

Answer

D) BB

Question 2

The scientific study of heredity

Accepted Answer

D) Genetics

Answer

A) genes

Answer

B) Gregor Mendel

Answer

C) Punnett Square

Question 3

How many alleles (letters) do each person carry for a trait?

Accepted Answer

2

Answer

3

Answer

4

Answer

1

Question 4

A chart that is used to calculate the probability of an offspring's combination of alleles

Accepted Answer

Punnett Square

Answer

Gene Map

Answer

Gene Guide

Answer

Punnett Triangle

Question 5

In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?

Accepted Answer

RR or Rr

Answer

RR

Answer

R

Answer

rr

Question 6

The total physical appearance for an individual. Mark only one oval.

Accepted Answer

Phenotype

Answer

Heterozygous

Answer

Genotype

Answer

Homozygous

Question 7

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

Accepted Answer

25%

Answer

75%

Answer

0%

Answer

50%

Question 8

The Father of Genetics. Mark only one oval.

Accepted Answer

Gregor Mendel

Answer

Gene Townsend

Answer

Gene Sampson

Answer

Reginald Punnett

Question 9

Dominant alleles are represented by a:

Accepted Answer

capital letter

Answer

male gene

Answer

recessive trait

Answer

lowercase letter

Question 10

Which of the following is homozygous recessive?

Accepted Answer

yy

Answer

YY

Answer

Yy

Answer

Y

Question 11

Codominance of trait: Blue (BB), Red (bb), and Blue/Red strips (Bb). What percent of the offspring will be Blue?

Accepted Answer

0%

Answer

75%

Answer

25%

Answer

50%

Question 12

A trait that an organism is born with that is obtained from parents or ancestors

Accepted Answer

Inherited trait

Answer

Acquired trait

Answer

Homozygous

Answer

Heterozygous

Question 13

Which of the following is a phenotype?

Accepted Answer

red hair

Answer

Aa

Answer

heterozygous

Answer

DNA

Question 14

What is heredity?

Accepted Answer

Process of traits passed from parents to offspring

Answer

Traits passed from offspring to parents

Answer

Traits passed from only father to daughter

Answer

Traits passed from only mother to son

Question 15

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

Accepted Answer

gg

Answer

all of the choices are yellow

Answer

GG

Answer

Gg

Question 16

How many alleles (letters) does a child get from each parent for each trait?

Accepted Answer

1

Answer

3

Answer

2

Answer

4

Question 17

What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness?

Accepted Answer

0 in 4

Answer

4 in 4

Answer

1 in 4

Answer

2 in 4

Question 18

In the punnett square, what is the probability for white fur?

Accepted Answer

50%

Answer

0%

Answer

25%

Answer

75%

Question 19

The type of plant that Gregor Mendel was famous for studying

Accepted Answer

peas

Answer

hybrid purple corn

Answer

finches

Answer

cucumbers

Question 20

What you see, or the physical appearance. Mark only one oval.

Accepted Answer

phenotype

Answer

homozygous

Answer

genotype

Answer

heterozygous

Question 21

Aa, DD, bB, yy are all examples of

Accepted Answer

genotypes

Answer

phenotypes

Question 22

In the punnett square below, what belongs in the missing square?

Accepted Answer

tt

Answer

Bb

Answer

TT

Answer

Tt

Question 23

B = brown eyes b = blue eyes. What is true about these two brothers that have brown eyes? One has genotype BB the other Bb.

Accepted Answer

they have same phenotype but different genotypes

Answer

they have the same genotype and phenotype

Answer

they have the same genotype but different phenotypes

Answer

they have different genotypes and phenotypes

Question 24

Which of the following genotypes is homozygous dominant?

Accepted Answer

AA

Answer

Aa

Answer

aa

Answer

A

Question 25

Heterozygous is when...

Accepted Answer

the alleles are different

Answer

the alleles are the same

Answer

the alleles are absent

Answer

the alleles are present

Question 26

Which of the characteristics is a lion least likely to pass on to its offspring?

Accepted Answer

scars on leg

Answer

body size

Answer

fur color

Answer

length of tail

Question 27

In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?

Accepted Answer

25%

Answer

0%

Answer

75%

Answer

50%

Question 28

Which of the following is NOT a genotype?

Accepted Answer

a trait

Answer

homozygous recessive

Answer

heterozygous

Answer

Bb

Question 29

Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB). Cross a red flower with a speckled flower. What is the phenotypic ratio?

Accepted Answer

2 red, 2 speckled

Answer

2 red, 2 blue

Answer

2 blue, 2 speckled

Answer

4 speckled

Question 30

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

Accepted Answer

Incomplete Dominance

Answer

Complete Dominance

Answer

Recessive

Answer

Codominance

Question 31

In some chickens, the gene for feather color is controlled by codominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette. If two erminette chickens were crossed, what is the probability that they would have a black chick?

Accepted Answer

25%

Answer

0%

Answer

50%

Answer

75%

Answer

100%

Question 32

In snapdragons, flower color is controlled by incomplete dominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as pink. What cross would produce the most pink-flowered plants?

Accepted Answer

RR x WW

Answer

RW x RW

Answer

RW x RR

Answer

RW x WW

Genetics: Heredity, Traits, & Inheritance

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