Quiz about Genetics and Heredity Tests

Question 1

the genetic code for the gene

Accepted Answer

genotype

Answer

phenotype

Answer

homozygous

Question 2

Which of the following is a phenotype?

Accepted Answer

red hair

Answer

Aa

Answer

heterozygous genes

Answer

mutated DNA

Question 3

Which of the following alleles is homozygous (purebred) recessive?

Accepted Answer

tt

Answer

Tt

Answer

TT

Answer

t

Question 4

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

Accepted Answer

dominant

Answer

recessive

Answer

lower case letter

Answer

both

Question 5

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 6

Which of the following is homozygous dominant?

Accepted Answer

YY

Answer

Yy

Answer

Y

Answer

yy

Question 7

In a pedigree, what shape represents a male?

Accepted Answer

square

Answer

circle

Answer

triangle

Answer

diamond

Question 8

How many girls in this family express this recessive disorder?

Accepted Answer

5

Answer

4

Answer

6

Answer

7

Question 9

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

Accepted Answer

one

Answer

two

Answer

three

Answer

five

Question 10

Genotype refers to the ...

Accepted Answer

the possible combination of alleles in a gene

Answer

physical expression of the genes

Answer

whether an allele is dominant or recessive

Answer

how an organism will appear

Question 11

What is a phenotype

Accepted Answer

The physical trait

Answer

The genetic make up (code)

Question 12

the passing of genetic traits from parent to offspring.

Accepted Answer

heredity

Answer

trait

Answer

gene

Answer

allele

Question 13

having two of the same genes for the trait (sometimes called purebred).

Accepted Answer

homozygous

Answer

hetrozygous

Answer

protein

Answer

chromosome

Question 14

having two different genes for a trait (sometimes called hybrid).

Accepted Answer

heterozygous

Answer

protein

Answer

homozygous

Answer

genotype

Question 15

An allele whose trait only shows up when no dominant allele is present.

Accepted Answer

recessive allele

Answer

hidden allele

Answer

dominant allele

Answer

present allele

Question 16

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 17

One form of a gene is called_______________

Accepted Answer

an allele

Answer

a DNA

Answer

a Phenotype

Answer

a trait

Question 18

Which of the following genotypes is a purebred?

Accepted Answer

bb

Answer

Bb

Answer

Gg

Answer

Dd

Question 19

Dominant alleles are-

Accepted Answer

capital

Answer

lowercase

Answer

both

Answer

neither

Question 20

Recessive alleles are-

Accepted Answer

lowercase

Answer

capital

Answer

both

Answer

neither

Question 21

"The Great White Shark was 20 feet in length.  Phenotype or Genotype?

Accepted Answer

phenotype

Answer

genotype

Question 22

The dominant trait is

Accepted Answer

yellow pea seeds

Answer

green pea seeds

Answer

there is no dominant seed

Answer

Jolly green giant

Question 23

Long hair is a dominant trait. Choose the BEST statement.

Accepted Answer

This guinea pig could be homozygous dominant (HH) or heterozygous (Hh)

Answer

This guinea pig received two dominant traits. (HH)

Answer

This guinea pig cannot have a recessive allele. (h)

Answer

This guinea pig is homozygous recessive (hh)

Question 24

This little guy has a recessive trait. Choose the best statement.

Accepted Answer

Both parents gave him an "h". (hh)

Answer

He has one "H" and one "h".

Answer

He will die without hair.

Answer

He is a baby and his hair will grow in a few more days.

Question 25

How many generations are shown in this pedigree?

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 26

How many kids did the mother and father from the first generation have?

Accepted Answer

4

Answer

2

Answer

5

Answer

6

Question 27

How are individuals I-2 and III-5 related?

Accepted Answer

Grandma and grandson

Answer

Grandpa and grandson

Answer

Mom and son

Answer

Uncle and nephew

Question 28

What do half colored symbols represent?

Accepted Answer

The individual is a carrier (heterozygous).

Answer

The individual expresses the trait.

Answer

The individual has both recessive alleles.

Answer

The individual has both dominant alleles.

Genetics and Heredity Tests

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