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Genetics Study Quiz

Total questions: 17

Worksheet time: 13mins

Name
Class
Date
1.

According to Chargaff’s rules, if you have 23% of the base Cytosine in DNA, how much Thymine would be present?

a)

67

b)

24

c)

23

d)

77

2.

If the body cells in an organism have 10 chromosomes, then the sex cells produced during meiosis would have _____ chromosomes.

a)

20

b)

5

c)

15

d)

30

3.

Cloning is like _______ reproduction in that it creates ______

a)

sexual; a new organism that is different from parent

b)

asexual; an exact copy og the parent

c)

unsexual; to new cells have a similar shape

d)

sexual; a child from two parents

4.

Proteins are made by reading the _________ given by _____.

a)

map; ribosomes

b)

words; tRNA

c)

instructions; DNA

d)

book, mRNA

5.

Who determines the sex of the offspring?

a)

the female

b)

the male

c)

the chromosome T

d)

meiosis

6.

What would the complimentary strand of DNA be for the sequence of bases AAGTCCAGA

a)

CCATGGCAA

b)

TTAACCAGA

c)

TTCAGGTCT

d)

GGCCTATACG

7.

Who were the 3 main scientists who founded the structure of DNA?

a)

Watkins, Mendel, Reed

b)

Chargraff, Franklin, Watson

c)

Franklin, Watson, Crick

d)

Mendel, Crick, Franklin

8.

Genetics is the study of...

a)

Body systems

b)

cell division

c)

heredity

d)

sexual reproduction

9.

On a punnett square, two capital letters indicate a gene which is

a)

Homozygous dominant

b)

Homozygous recessive

c)

Heterozygous

d)

None of the above.

10.

Genetic variation occurs in what type of reproduction

a)

Sexual

b)

Asexual

c)

Both

11.

On a punnet square, a capital letter and lowercase letter indicate a gene that is

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

d)

None of these

12.

On a punnett square, two lowercase letters indicate a gene which is

a)

Homozygous dominant

b)

Homozygous recessive

c)

Heterozygous

d)

None of these

13.

This represents the physical appearance of an organism.

a)

Genotype

b)

Phenotype

c)

Heredity

d)

Genes

14.

What is the probability the offspring will be homozygous dominant?

a)

25%

b)

50%

c)

75%

d)

100%

15.

What is the probability that the offspring will be heterozygous?

a)

25%

b)

50%

c)

75%

d)

100%

16.

Factors that control traits are

a)

purebreds

b)

genes

c)

recessives

d)

parents

17.

An organisms's allele combination is known as

a)

phenotype

b)

mutation

c)

hybrid

d)

genotype