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Mr. Harris's 7th Grade Genetics Review

Total questions: 40

Worksheet time: 34mins

Name
Class
Date
1.

Using the diagram, which type of asexual reproduction is being demonstrated by the bacterial cell? (a)  

Choose from the below words
Budding
Cleavage
Regeneration
Binary Fission
2.
If an organism reproduces asexually, its offspring will most likely be:
a)
produced as a result of fertilization
b)
Genetically identical to the parent
c)
Genetically different from each other
d)
Produced from specialized cells known as gametes
3.

What advantages do sexually reproducing organisms have over asexually reproducing organisms? (a)  

Choose from the below words
Genetic variation
Genetic stability
4.

Sexual reproduction provides for what to occur? (a)  

Choose from the below words
Cloning
budding
Genetic stability
Genetic variation
5.
How do unicellular (single celled) protists reproduce?
a)

internal fertilization

b)

External fertilization

c)

Binary fission

d)

conjugation

6.
Which statement below is correct about asexual reproduction and sexual reproduction?
a)
Asexual reproduction and sexual reproduction both involve one parent
b)
Sexual reproduction involves making clones and asexual reproduction creates unique offspring
c)
Asexual reproduction creates clones and sexual reproduction creates unique offspring
7.
Genetic Variation means
a)
genetic differences in a population or species
b)
genetic similarities between a population or species
8.
What are some of the facts about asexual reproduction?
a)
Takes only one mate to reproduce and takes a longer time to reproduce
b)
Takes a shorter amount of time to reproduce and it takes two mates to reproduce
c)
Reproduces diverse offspring and takes a longer time to reproduce
d)
Takes only one mate to reproduce and takes a shorter time to reproduce
9.
What are some of the facts about sexual reproduction?
a)
Takes two mates to reproduce and takes a longer time to reproduce
b)
Takes one mate to reproduce and takes a shorter amount of time to reproduce
c)
Takes two mates to reproduce and takes a shorter amount of time to reproduce
d)
Takes one mate to reproduce and takes a shorter amount of time to reproduce
10.
What is an advantage of sexual reproduction?
a)
Allows genetic variation
b)
Only needs one parent
c)
Offspring are exact copies of parent
11.
What is one disadvantage of sexual reproduction?
a)
Only one parent needed
b)
Off spring are exact copies of parents
c)
Happens very quickly
d)
Needs two parents
12.
When a starfish grows a new body off a broken arm, what kind of reproduction is this?
a)
Sexual
b)
Differentiation
c)
Asexual 
d)
Specialization
13.
If two organisms reproduce sexually, then their offspring will exhibit a genetic makeup that is -
a)
identical to only one parent
b)
identical to all of its siblings
c)
a unique combination of traits
14.

What kind of reproduction has a stem that grows along the ground and takes root to become a new organism?

a)

binary fission

b)

fragmentation

c)

mitosis

d)

budding

e)

runner

15.

What kind of reproduction is pictured?

a)

spore reproduction

b)

fragmentation

c)

parthenogenesis

d)

budding

e)

runner

16.

What kind of reproduction is pictured?

a)

spore reproduction

b)

fragmentation

c)

parthenogenesis

d)

budding

e)

runner

17.

A fertilized egg is called a ____.

a)

baby

b)

sperm

c)

egg

d)

zygote

18.

What is a gamete?

a)

sex cell

b)

human cells

c)

plant cells

d)

plant and animal cells

19.

The male gamete is a ______. The female gamete is a _____. When the two gametes come together, it's called _____.

a)

egg, sperm, offspring

b)

sperm, egg, offspring

c)

sperm, egg, gamete

d)

sperm, egg, asexual reproduction

e)

sperm, egg, fertilization

20.

Sexual reproduction provides more diversity/variation in a species.

a)

true

b)

false

21.

Asexual reproduction happens quicker than sexual reproduction.

a)

true

b)

false

22.

How many parents are required for asexual reproduction?

a)

none

b)

1

c)

2

d)

4

23.

Which organisms reproduce by budding? Click all that apply.

a)

hydra

b)

earthworm

c)

bacteria

d)

yeast cells

24.

How many parents are involved with sexual reproduction?

a)

none

b)

1

c)

2

d)

4

25.

An organism with 2 of the same alleles for a trait is said to be

a)

Homozygous

b)

Heterozygous

c)

Heterowhatsis

d)

Hybrid

26.

What is genetics?

a)

The study of how traits are passed to offspring

b)

The study of living things

c)

The study of diseases

d)

The study of the human body

27.

An organism with 2 different alleles for a trait is said to be

a)

Homozygous

b)

Heterozygous

c)

Heterowhatsis

d)

Purebred

28.

What is a gene?

a)

Tightly bundled DNA ready for cell division

b)

The brain of a cell

c)

A physical characteristic inherited from your parents

d)

A piece of DNA that determines a trait

29.

Which of the following is NOT an inherited trait?

a)

Having pierced ears

b)

Having attached earlobes

c)

Having dimples

d)

Being right-handed

30.

What is an allele?

a)

The form of a gene that is always expressed

b)

One of the possible forms or types of a gene

c)

The combination of 2 genes for a specific trait

d)

The form of a gene that is hidden by a dominant gene

31.

Anna has brown eyes, black hair, and is left-handed. These are all descriptions of her

a)

Genotype

b)

Phenotype

c)

Allelotype

d)

Chromotype

32.

What is an observable trait that you can what it is by looking at a person?

a)

Phenotype

b)

Genotype

c)

Dominant

d)

Recessive

33.

A segment of DNA

a)

genes

b)

phenotype

c)

genotype

d)

chromosome

34.

This part of the DNA codes for a trait

a)

phenotype

b)

gene

c)

chromosome

d)

DNA

35.

Carries genetic code for all living things

a)

Chromosome

b)

DNA

c)

genotype

d)

gene

36.

Physical expression of a trait

a)

Chromosome

b)

DNA

c)

phenotype

d)

gene

37.

In genetics, this word is used to describe the traits of a person that you can see

a)

phenotype

b)

heredity

c)

gene

d)

genotype

38.

Passing genes from one generation to another is known as

a)

DNA

b)

Chromsome

c)

Heredity

d)

Genes

39.

The basic building block of life

a)

atoms

b)

DNA

c)

Genes

d)

cells

40.

The study of genes and heredity

a)

Heredity

b)

Genetics

c)

Biology

d)

Chemistry

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