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Heredity/Genetics

Total questions: 26

Worksheet time: 41mins

Name
Class
Date
1.

What is the scientific study of heredity?

a)

Heredity

b)

Genetics

c)

Allele

2.

What is the passage of genetic instructions from one generation to the next?

a)

Genetics

b)

DNA

c)

Heredity

d)

Nucleus

3.

What is a segment of DNA found on a chromosome; determines the inheritance of a particular trait?

a)

Gene

b)

Allele

c)

Heredity

d)

DNA

4.

What is the different possibilities for a given trait?

a)

Gene

b)

Allele

c)

Heredity

d)

Nucleus

5.

What is a trait that will only exhibit when the dominant allele is not present.

a)

DNA

b)

Dominant

c)

Recessive

6.

Gregor Mendel studied heredity using _______ plants

a)

rose

b)

pea

c)

berry

d)

corn

7.

____________ used plants to study the way traits are passed from parent to offspring

a)

Mendel

b)

Punnett

c)

Sutton

8.

The organism's appearance is known as its

a)

heredity

b)

pedigree

c)

phenotype

d)

genotype

9.

Who is the Father of Genetics?

a)

Darwin

b)

Punnett

c)

Mendel

10.

_____________ describes a trait that covers over, or masks another form of that trait.

a)

recessive

b)

gene

c)

allele

d)

dominant

11.

The letters representing the phenotype is called

a)

phenotype

b)

genotype

12.

Different forms of a gene are called

a)

alleles

b)

traits

13.

Two of the same alleles of the gene for a certain trait

a)

heterozygous

b)

homozygous

14.

Two different alleles of the gene for a certain trait

a)

homozygous

b)

heterozygous

15.
Different forms of a single gene are called a(n) _________.
a)
gene
b)
chromosome
c)
allele
d)
genotype
16.
TRUE OR FALSE: If at least one allele is a capital letter in the pair of genes, the recessive trait will be dominant.
a)
True
b)
False
17.
TRUE OR FALSE: A genotype of NN would be heterozygous.
a)
True
b)
False
18.
TRUE OR FALSE: A genotype of mm would be homozygous recessive.
a)
True
b)
False
19.
TRUE OR FALSE: A genotype of Ss would be heterozygous.
a)
True
b)
False
20.
What is an organism’s appearance called?
a)
its genotype
b)
its phenotype
c)
its dominant trait
d)
its recessive trait
21.

The allelle / (trait) that is "weaker". The offspring will not have the trait represented unless there are two of these.

a)

recessive allele

b)

dominant allele

c)

co-dominant allele

22.

How many chromosomes do humans have?

a)

46

b)

23

c)

96

d)

21

e)

43

23.

Characteristics passed from parents to their offspring.

a)

behavior

b)

learned trait

c)

inherited trait

d)

acquired trait

24.
What is a gene?
a)
An entire chromosome that  codes for a trait
b)
a piece of clothing
c)
a piece of a DNA on chromosome that codes for a trait
d)
Chemical messengers in your brain that code for a trait
25.

Chromosomes are found in the ____________ of the cell

a)

Chloroplast

b)

Nucleus

c)

Cytoplasm

d)

Mitochondria

e)

Vacuole

26.

What is the dominant eye color?

a)

Blue

b)

Green

c)

Brown

d)

Hazel