Free Printable GENETICS REVIEW HS

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GENETICS REVIEW HS

Total questions: 27

Worksheet time: 44mins

Name

Class

Date

A pea plant that has 2 different alleles for a trait means they are

homozygous

heterozygous

purebred

none of the above

If an organism has 2 identical alleles for a particular trait then it is

heterozygous

homozygous

hybrid

none of the above

If the parents are X H X h and X h Y, then what is the percentage that the children will have the recessive trait.

50%

25%

75%

Type A (Ai) blood X type O (ii) blood

what would be the percentage that their offspring would be Type A blood?

25%

50%

100%

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

R= Red W= White RW= Pink

50%

25%

100%

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

0 %

25%

50%

75%

Which members of the family above are afflicted with Huntington's Disease?

I-1, II-2, II-3, II-7, and III-3

I-1, I-2, II-3, II-7, and III-5

I-1, I-3, II-8, and III-2

I-2, II-1, II-4, II-5, II-6, II-8, III-1, III-2, III-4, and III-5

Give the genotype for person III-3

This type of inheritance pattern is a MIXTURE of both traits.

incomplete dominance

co-dominance

complete dominance

recessive pattern

10.

Hemophilia is a recessive x-linked disorder.
Which genotype represents a female who is a carrier for hemophilia?

X^HX^h

X^hX^h

X^HX^H

X^hY

11.

Hemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?

X^HX^h

X^hX^h

X^HY

X^hY

12.

A woman has the genotype of ii for her blood type. Her mother is heterozygous for A type. Which genotype can her father be?

I^Bi

I^BI^B

I^AI^B

I^AI^A

13.

The term phenotype refers to an organisms _______

Genetic code

Physical appearance

Alleles

None of these are correct

14.

Who is considered the founder of the scientific study of genetics

Louis Pasteur

Isaac Newton

Marie Curie

Gregor Mendel

15.

Chromosomes 1-22 are called

Sex Chromosomes

Autosomes

Monosomes

Trisomies

16.

Different forms of a single gene are known as

chromosomes

DNA

genes

alleles

17.

How many offspring will show the recessive trait?

25%

50%

75%

18.

How many are hybrids (Aa)?

25%

50%

100%

19.

What fraction of individuals will be homozygous dominant?

1/3

1/2

2/3

1/4

20.

Tags on your DNA that occur because of your environment are called what?

Epigenetics

Alleles

Genes

Phenotypes

21.

What gamete possibilities could come from this parent's genotype?

AB, AB, aB, aB

Ab, AB, Ab, ab

Ab, Ab, Ab, Ab

AB, aB, ab, aB

22.

What goes in box 3

Aabb

AABB

AAbb

aaBb

23.

Aa, DD, bB, yy are all examples of

genotypes

phenotypes

24.

Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?

25%

50%

100%

25.

How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though the look and perform completely different?

The two different cells become mutated

The genes expressed in each cell are different

They actually have different DNA in the two types of cells.

The genome of the different cells changes

26.

Why do bone cells become bone cells, heart cells become heart cells, skin cells become skin cells, etc...?

It just happens randomly

Determined by the mother while in the womb

The turning on/off of certain genes that are needed for that type of cell

The zygote tells them what to become

27.

A parent with genotype YyRR could produce which gametes?

YR, YR, yR, yR

Yy, Rr, yy, rr

Yr, Yr, yr, yR

YR, YR, yr, yr

Reset

GENETICS REVIEW HS

Total questions: 27

Worksheet time: 44mins

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