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Biology Unit 4 - Genetics

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

When Mendel crossed his true-breeding P generation, he got

a)

all tall plants

b)

all short plants

c)

3 tall 1 short

d)

all medium height

2.

When Mendel crossed his heterozygous F1 generation, he got

a)

all tall plants

b)

all short plants

c)

3 tall 1 short

d)

all medium height

3.

Why did Mendel get no short plants in the F1 generation, but short plants in the F2 generation?

a)

He messed up

b)

the short allele is dominant

c)

the alleles stay seperate

d)

there was a mutation

4.

Punnett squares DO NOT show

a)

the actual results of a genetic cross

b)

possible genotypes of offspring

c)

alleles in parent gametes

d)

hypothetical ratios of genotypes

5.

How many possible gametes can be made from RrYy

a)

1

b)

2

c)

3

d)

4

6.

How many possible gametes can be made from RrYY

a)

1

b)

2

c)

3

d)

4

7.

If a red and a white flower make a pink flower, it is likely because of

a)

dominant and recessive alleles

b)

codominance

c)

incomplete dominance

d)

someone painting them pink

8.

If a red and a white flower make a white and red spotted flower, it is likely because of

a)

dominant and recessive alleles

b)

codominance

c)

incomplete dominance

d)

bees making art

9.

The human diploid number is 46. What is the haploid number?

a)

2

b)

23

c)

46

d)

92

10.

A fruit fly's haploid number is 4, what is its diploid number

a)

2

b)

4

c)

6

d)

8

11.

Linked genes are

a)

on the same chromosome

b)

telekinetic

c)

code for the same trait

d)

are always recessive

12.

Can 2 organisms have the same phenotype but different genotypes?

a)

Yes

b)

No

c)

Maybe

d)

I don't know

13.

If you have two identical alleles for a trait, you are

a)

a hybrid

b)

homozygous

c)

heterozygous

d)

an enigma

14.

If you have two different alleles for a trait, you are

a)

weird

b)

homozygous

c)

heterozygous

d)

an enigma

15.

During gamete formation, genes for different traits separate without influencing each other because of the principle of

a)

dominance

b)

independent assortment

c)

probablilty

d)

segregation

16.

Although Mendel studied pea plants, his principles apply to

a)

only pea plants

b)

all plants

c)

all organisms

d)

nothing.

17.

Crossing-over is when

a)

DNA is traded for cash

b)

DNA strands are switched between homologous chromosomes

c)

DNA ascends to a higher plane of existence

d)

individual genes move around on the same chromosome

18.

Gametes are produced by the process of

a)

meiosis

b)

mitosis

c)

crossing-over

d)

replication

19.

Skin cells are produced by the process of

a)

meiosis

b)

mitosis

c)

crossing-over

d)

replication

20.

Mitosis results in

a)

identical diploid cells

b)

identical haploid cells

c)

different diploid cells

d)

different haploid cells

21.

Meiosis results in

a)

identical diploid cells

b)

identical haploid cells

c)

different diploid cells

d)

different haploid cells

22.

Gene maps show

a)

inheritance patterns

b)

the location of different genes on a chromosome

c)

the alleles in an organism

d)

the base pairing sequences

23.

Variation produced by having several different genes for a trait is because of

a)

codominance

b)

polygenic inheritance

c)

incomplete dominance

d)

diploidy

24.

Which of the following is NOT part of a nucleotide

a)

sugar

b)

nitrogen base

c)

amino acid

d)

phosphate group

25.

Which of the following is NOT a nitrogen base found in DNA?

a)

guanine

b)

cytosine

c)

thymine

d)

uracil

26.

Which of the following is NOT a nitrogen base found in RNA?

a)

guanine

b)

cytosine

c)

thymine

d)

uracil

27.

DNA replication results in two new DNA molecules, each with one new DNA strand, and one original DNA strand.

a)

True

b)

False

c)

Maybe

d)

I have the power of God and anime on my side.

28.

which of the following is NOT a type of RNA?

a)

mRNA

b)

rRNA

c)

cRNA

d)

tRNA

29.

Which type of RNA is a copy of the DNA?

a)

tRNA

b)

rRNA

c)

mRNA

d)

cRNA

30.

Which type of RNA is brings the amino acids?

a)

tRNA

b)

rRNA

c)

mRNA

d)

cRNA

31.

Which type of RNA makes up ribosomes?

a)

tRNA

b)

rRNA

c)

mRNA

d)

cRNA

32.

how many nitrogen bases in one codon?

a)

1

b)

2

c)

3

d)

4

33.

how many codons for 1 amino acid?

a)

1

b)

2

c)

3

d)

4

34.

Which gene mutation swaps one nitrogen base for another?

a)

substitution

b)

deletion

c)

insertion

d)

inversion

35.

DNA is found in the

a)

cytoplasm

b)

Golgi apparatus

c)

nucleus

d)

plasma membrane

36.

DNA contains the sugar

a)

deoxyribose

b)

oxyribose

c)

ribose

d)

glucose

37.

RNA contains the sugar

a)

deoxyribose

b)

oxyribose

c)

ribose

d)

glucose

38.

What are the building blocks of proteins?

a)

mRNA

b)

tRNA

c)

nitrogen bases

d)

amino acids

39.

What is this used for?

a)

to decode the genetic code of mRNA

b)

to create intelligent beings

c)

to make anitcodons

d)

to splice mRNA

40.

In transcription,

a)

Ribosomes put proteins together

b)

mRNA is made from DNA

c)

mRNA is read by the ribosome

d)

DNA Helicasle helixbe unwinds the dou

41.

In translation,

a)

tRNA gets a new amino acid

b)

mRNA is made from DNA

c)

mRNA is read by the Ribosome to make protein

d)

DNA Helicasle helixbe unwinds the dou

42.

DNA makes RNA, which makes ______________

a)

nucleic acids

b)

carbohydrates

c)

lipids

d)

proteins

43.

a mutation involving a single nucleotide is a

a)

frameshift mutation

b)

point mutation

c)

beneficial mutation

d)

inversion

44.

Parents of the F1 generation are the

a)

F2 generation

b)

P generation

c)

F1 generation

d)

millenials

45.

Different versions of a gene are

a)

nucleotides

b)

alleles

c)

codons

d)

hybrids

46.

The order of bases determines codons, which determine

a)

nucleotides

b)

alleles

c)

amino acids

d)

genes

47.

How many recessive alleles will you need to express a recessive trait?

a)

0

b)

1

c)

2

d)

4

48.

How many dominant alleles will you need to express a dominant trait?

a)

0

b)

1

c)

2

d)

4

49.

Homologous chromosomes contain information for the same types of genes

a)

True

b)

False

c)

I don't know

d)

I get extra credit if I click this option?

50.

A bacteriophage is

a)

A virus that infects bacteria

b)

a bacteria

c)

a magic virus

d)

a virus that infects only humans

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