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Ch. 11.1 The Work of Gregor Mendel

Total questions: 13

Worksheet time: 1hrs 5mins

Name
Class
Date
1.

The scientific study of heredity is known as

a)

biology

b)

psychology

c)

genetics

d)

principle of dominance

2.

Fertilization is the process of

a)

the joining of the male an female reproductive cells

b)

cloning

c)

the development of an embryo

d)

recessive traits being masked

3.

A specific characteristic of an individual, such as seed color or plant height, is known as a

a)

gene

b)

allele

c)

hybrid

d)

trait

4.

A hybrid is an offspring resulting from

a)

parents with the same traits

b)

parents with different traits

5.

"Factors" passed from parents to offspring that are responsible for an individual's traits

a)

genes

b)

alleles

c)

hybrids

d)

traits

6.

Different forms of a gene, such as green and yellow seed color, are known as

a)

genes

b)

alleles

c)

hybrids

d)

traits

7.

Mendel's principle of dominance states that

a)

all alleles are dominant

b)

all alleles are recessive

c)

some alleles are dominant and some are recessive

d)

organisms only display recessive alleles

8.

Segregation of alleles refers to the fact that

a)

both alleles for a gene from each parent are passed down to offspring

b)

one allele for a gene from each parent are passed down to offspring

9.

The sex cells (sperm & egg) are referred to as

a)

Somatic cells

b)

Gametes

c)

Alleles

d)

Genes

10.

What the organism displays or expresses

a)

Genotype

b)

Phenotype

11.

The alleles an organism has for a particular trait

a)

Genotype

b)

Phenotype

12.

Heterozygous individuals

a)

Have two copies of the dominant allele

b)

Have one copy of each allele

c)

Have two copies of the recessive allele

13.

Homozygous individuals

a)

Have two copies of the dominant allele

b)

Have one copy of each allele

c)

Have two copies of the recessive allele