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Chapter 8: Genetics

Total questions: 49

Worksheet time: 25mins

Name
Class
Date
1.

No animal lives forever, so reproduction is essential to the survival of a species.

a)

True

b)

False

2.

________ reproduction involves only one parent.

a)

Asexual

b)

Sexual

3.

_________ reproduction produces offspring that are identical to the parent.

a)

Asexual

b)

Sexual

4.

_______ reproduction takes two parents to produce an offspring.

a)

Asexual

b)

Sexual

5.

_______ reproduction involves the gamete cells.

a)

Asexual

b)

Sexual

6.

______ reproduction produces offspring through mitosis.

a)

Asexual

b)

Sexual

7.

______ reproduction allows for a quick production of offspring. 

a)

Asexual

b)

Sexual

8.

Offspring produced through ____ reproduction are a genetic combination of traits inherited from parents.

a)

Asexual

b)

Sexual

9.

Offspring produced through _____ reproduction are more likely to survive an environmental change because they have greater genetic diversity.

a)

Asexaul

b)

Sexual

10.

If having dimples (D) is dominant to not having dimples (d), what is the percent chance that the offspring produced from two heterozygous parents will have dimples?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

11.

genotypes made of the same alleles

a)

recessive

b)

alleles

c)

homozygous

d)

dominant

e)

heterozygous

12.

different forms of genes for a single trait

a)

recessive

b)

alleles

c)

homozygous

d)

dominant

e)

heterozygous

13.

gene that is always expressed, when inherited

a)

recessive

b)

alleles

c)

homozygous

d)

dominant

e)

heterozygous

14.

gene that is expressed only in the homozygous state

a)

recessive

b)

alleles

c)

homozygous

d)

dominant

e)

heterozygous

15.

genotypes made of two different alleles

a)

recessive

b)

alleles

c)

homozygous

d)

dominant

e)

heterozygous

16.

The passing of physical characteristics from parents to offspring

a)

Heredity

b)

Trait

c)

Mendel

d)

Purebred

17.

The father of Modern Genetics is ______. 

a)

Mendel

b)

Punnett

c)

Scott

d)

Mendeleev

18.

In Mendel's experiment, the F1 generation identifies the ______ trait.

a)

dominant

b)

recessive

19.

A _______ is a tool used to help predict the probability of the offspring inheriting a specific trait from their parents.

a)

Periodic Table

b)

Punnett Square

c)

thermometer

d)

meter stick

20.

The _______ determines the ________.

a)

phenotype,

genotype

b)

genotype,

phenotype

21.

Which of the following represents a homozygous genotype?

a)

CC

b)

Cc

22.

Which of the following represents a heterozygous genotype?

a)

CC

b)

Cc

c)

cc

23.

In rabbits, black fur (B) is dominant to white (b) fur. What is the percent chance that the offspring will have white fur if one parent is homozygous dominant and the other parent is homozygous recessive?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

24.

In rabbits, black fur (B) is dominant to white (b) fur. What is the percent chance that the offspring will have white fur if both parents are homozygous recessive?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

25.

A genetic cross that predicts the outcome for a single trait is referred to as a ______ cross.

a)

monohybrid

b)

dihybrid

26.

A genetic cross that predicts the outcome for the inheritance of two traits at the same time is referred to as a ______ cross.

a)

monohybrid

b)

dihybrid

27.

A purebred chicken with white feathers is crossed with a purebred chicken that has black feathers. Each of their offspring has both black and white feathers. Why does this happen? 

a)

Both alleles for feather color are dominant.

b)

Both alleles for feather color are recessive.

c)

The alleles for feather color are neither dominant nor recessive.

d)

Several alleles work together to determine the trait.

28.

What is the chromosome theory of inheritance?

a)

Chromosomes are carried from parents to offspring on hybrids.

b)

Genes are carried from parents to offspring on chromosomes.

c)

Hybrid pairs of chromosomes combine to form offspring.

d)

Codominant genes combine to form new hybrids.

29.

What happens during meiosis?

a)

Two sex cells combine.

b)

Chromosome pairs separate and are distributed into new sex cells.

c)

Each sex cell copies itself to form four new chromosomes.

d)

Chromosome pairs remain together when new sex cells are formed.

30.

Which term refers to physical characteristics that are studied in genetics? 

a)

traits

b)

offspring

c)

generations

d)

hybrids

31.

An organism’s genotype is its 

a)

genetic makeup.

b)

feather color

c)

physical appearance.

d)

stem height.

32.

Which of the following traits is influenced by both inheritance and environmental factors?

a)

the ability to sing well

b)

the ability to cough

c)

natural hair color

d)

dyed hair color

33.

If parent A had curly hair and parent B had straight hair and produced a child with wavy hair, which type of inheritance is shown?

a)

Codominance

b)

Incomplete dominance

c)

Epistasis

34.

In _________, one gene depends on another gene to be expressed (hint: albino). 

a)

Polygenic traits

b)

Multiple alleles

c)

Complete dominance

d)

Epistasis

35.

Blood type (A,B,O) was an example of what?

a)

Multiple alleles

b)

Codominance

c)

Complete Dominance

36.

A baby's general health could be determined by what?

a)

Environmental factors

b)

Genetics

c)

Both

37.

Your height is determined by many different genes to code for the trait. What is this type of inheritance called?

a)

Polygenic traits

b)

Complete dominance

c)

Multiple alleles

d)

Mutated genes

38.

first stage of the cell cycle before they divide. Cells make copies of DNA and prepare to divide

a)

Cell Cycle

b)

Interphase

c)

Replication

d)

Chromosome

e)

Cytokinesis

39.

thread-like structures formed from DNA and proteins

a)

Interphase

b)

Replication

c)

Chromosome

d)

Cytokinesis

e)

Mitosis

40.

regular sequence of growth and division that cells undergo

a)

Cell Cycle

b)

Interphase

c)

Replication

d)

Cytokinesis

e)

Mitosis

41.

second stage of the cell cycle where the cell's nucleus divides into two new nuclei and one set of DNA is distributed into each daughter cell

a)

Interphase

b)

Replication

c)

Chromosome

d)

Cytokinesis

e)

Mitosis

42.

when cells make exact copies of DNA

a)

Interphase

b)

Replication

c)

Chromosomes

d)

Cytokinesis

e)

Mitosis

43.

begins during mitosis when the cell splits into two new daughter cells

a)

Cell Cycle

b)

Interphase

c)

Replication

d)

Chromosome

e)

Cytokinesis

44.

How many daughter cells are produced during meiosis?

a)

2

b)

3

c)

4

d)

5

45.

How many daughter cells are produced during mitosis?

a)

2

b)

3

c)

4

d)

5

46.

Human cells have 46 chromosomes. How many chromosomes would be present in a human egg cell?

a)

46

b)

92

c)

23

d)

12

47.

An onion gamete cell has 8 chromosomes. How many chromosomes would be present in a body cell?

a)

4

b)

8

c)

16

d)

32

48.

Which phase does growth, copying DNA, and preparations for division happen?

a)

interphase

b)

mitosis

c)

anaphase

d)

cytokinesis

49.

In which phase does the nucleus split in two leaving an identical set of DNA in each cell?

a)

interphase

b)

mitosis

c)

anaphase

d)

cytokinesis