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Genetics 1

Total questions: 20

Worksheet time: 13mins

Name
Class
Date
1.

What type of letter is used to represent a dominant trait?

a)

capital (uppercase) letter

b)

lowercase letter

2.

A gene

a)

is a section of DNA

b)

is a chemical found in the nucleus of cells

c)

contains instructions for building a protein

d)

all of the above

3.
A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?
a)
25%
b)
50%
c)
75%
d)
100%
4.

The passing of genetic traits from parent to offspring.

a)

heredity

b)

trait

c)

gene

d)

allele

5.

The study of heredity is called

a)

botany

b)

geology

c)

biochemistry

d)

genetics

6.

Mendel discovered that certain traits would disappear in a particular generation. These traits are called ____________ traits.

a)

reciprocal

b)

hybrid

c)

dominant

d)

recessive

7.

Traits that hide recessive traits are called _____________________.

a)

dominant

b)

co - recessive

c)

superior

d)

genomic

8.

Who is considered the Father of Genetics?

a)

Albert Einstein

b)

Issac Newton

c)

Gregor Mendel

d)

Marie Curie

9.

A recessive allele is represented by a

a)

lower-case letter

b)

capital letter

c)

a number

d)

a symbol

10.

What is a trait?

a)

A part of a plant

b)

A form of reproduction

c)

A pair of chromosomes

d)

A characteristic of any living organism

11.
Why can sisters have the same parents but have different hair color from each other?
a)
The parents choose their hair when they are born
b)
The environment determines hair color 
c)
They inherited different sets genes from their parents
d)
They are both aliens
12.

What organism did Gregor Mendel use to discover the principles that rule heredity?

a)

pea plants

b)

pigeons

c)

planaria

d)

corn plants

13.

The offspring of sexual reproduction:

a)

receive genetic material only from the female

b)

receive genetic material only from the male

c)

receives none of its genetic material from its parents

d)

receives half of its genetic material from each parent

14.

When is the recessive trait seen in the offspring?

a)

when a recessive allele is in an allele pair (Aa, aa)

b)

when both alleles in the allele pair are recessive (aa)

c)

you cannot see a recessive gene because it skips generations

d)

a recessive trait is never seen

15.

In the cells of most organisms, genetic information is contained in the

a)

cell wall

b)

nucleus

c)

cell membrane

d)

mitochondria

16.

Which of the following is an example of asexual reproduction?

a)

A fish releases sperm which unites with an egg of another fish.

b)

A worm is split in two; each half grows back into a complete worm.

c)

A gray cat is the offspring of a black and white cat.

d)

Flowers from two different plants are crossed to produce seed

17.

Asexually produced offspring are

a)

genetically

Identical to the parent

b)

formed by two parents

c)

genetically different from each parent

d)

different from the parent

18.

Which of the following is the correct name of DNA?

a)

Deoxyribose Acid

b)

Deoxynuclecic Acid

c)

Deoxy Acid

d)

Deoxyribonucleic Acid

19.

An allele whose trait always shows up in the organism when the allele is present:

a)

gene

b)

purebred

c)

trait

d)

dominant

20.

An allele that is masked when a dominant allele is present

a)

recessive

b)

genome

c)

strong

d)

DNA