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Genetics (Animal Science)

Total questions: 61

Worksheet time: 31mins

Name
Class
Date
1.

Which of these is not what genetics is the study of?

a)

Genes

b)

Heredity

c)

Variation

d)

Purines

2.

Entire genetic material of an animal

a)

Genome

b)

DNA

c)

Chromosomes

d)

Species

3.

What species has chromosomes number (2n) of 60?

*not pairs

a)

Cattle (Bos Taurus)

b)

Horses

c)

Human

d)

Swine

4.

What species has chromosomes number (2n) of 64?

*not pairs

a)

Cattle (Bos Taurus)

b)

Horses

c)

Human

d)

Swine

5.

What species has chromosomes number (2n) of 46?

*not pairs

a)

Cattle (Bos Taurus)

b)

Horses

c)

Human

d)

Swine

e)

Sheep

6.

What species has chromosomes number (2n) of 38?

*not pairs

a)

Swine

b)

Sheep

c)

Human

d)

Horses

e)

Cattle (Bos Taurus)

7.

What species has chromosomes number (2n) of 54?

*not pairs

a)

Sheep

b)

Swine

c)

Humans

d)

Horses

e)

Cattle (Bos Taurus)

8.

How many chromosomes does the species of cattle have?

a)

30

b)

32

c)

23

d)

24

e)

19

9.

How many chromosomes does the species of horses have?

a)

30

b)

32

c)

23

d)

19

e)

27

10.

How many chromosomes does the species of humans have?

a)

30

b)

32

c)

23

d)

19

e)

27

11.

How many chromosomes does the species of swine have?

a)

30

b)

32

c)

23

d)

19

e)

27

12.

How many chromosomes does the species of sheep have?

a)

30

b)

32

c)

23

d)

19

e)

27

13.

A chromosome variation with more than one full set.

a)

Polyploid

b)

Aneuploidy

c)

Monosomic

d)

Trisomic

14.

A chromosome variation with variation in individual sets

a)

Polypoid

b)

Aneuploidy

c)

Monosomic

d)

Trisomic

15.

A chromosome variation where you are missing a chromosome.

a)

Polyploid

b)

Aneuploidy

c)

Monosomic

d)

Trisomic

16.

A chromosome variation where you have extra chromosomes.

a)

Trisomic

b)

Monosomic

c)

Aneuploidy

d)

Polyploid

17.

Which of the following constructs a nucleotide?

a)

Sugar

b)

Phosphate

c)

Base Pair

d)

Purine

18.

What are examples of purines?

a)

Adenine and Guanine

b)

Adenine and Thymine

c)

Cystosine and Guanine

19.

What are examples of pyrimidines?

a)

Adenine (A) and Guanine (G)

b)

Guanine (G) and Cytosine (C)

c)

Thymine (T) and Cytosine (c)

20.

The principle of ______________ ________________ assortment dictates that the separation of genes is independent of another pair.

a)

Independent Assortment

b)

Separation

21.

Nitrogenous bases are made of _________ and ____________.

a)

Purines and Pyrimidines

b)

DNA and Chromosomes

c)

Deoxyribose and Purines

22.

Aneuploidy: Organisms that have _____________ in individual sets of chromosomes.

a)

Variation

b)

Missing

c)

Extra

d)

More than one

23.

Chromosomes contain ____________ which are wrapped around proteins.

a)

DNA

b)

RNA

c)

Phosphate

24.

____________________ are smaller segments of DNA within the chromosome.

a)

Genes

b)

Chromosome

25.

True or False: Chromosome numbers varies based on species.

a)

True

b)

False

26.

Contains more than one full set of chromosomes

a)

Aneuploidy

b)

Polyploidy

c)

Monosomic

d)

Trisomic

27.

_________________ __________________ are traits that are only visible in one sex. Examples include: Bulls have milk genes.

a)

Sex Linked

b)

Sex Limited

c)

Sex Influenced

28.

Organisms that are missing a chromosomes (2n-1)

a)

Monosomic

b)

Polyploid

c)

Aneuploidy

d)

Trisomic

29.

True or False: Sex cells go through mitosis to complete cell division.

a)

True

b)

False

30.

___________________ ________________ is when the hetero-zygote is intermediate to the homozygous but more closely resembles the homo-zygote dominat pairing

a)

Partial Dominance

b)

Incomplete Dominance

c)

Co-dominance

31.

DNA is made up of ___________ sugar and _____________ vases which are held together by phosphate bonds.

a)

Deoxyribose; nitrogenous

b)

Ribose; phosphate

c)

Ribose: Nitrogenous

d)

Deoxyribose: phospahte

32.

The process if converting DNA to a usable form peptide.protein synthesis is called

a)

Translation

b)

Transcription

c)

Both

33.

_______ code for a group of 3 nitrogenous bases.

a)

Condon

b)

Amino Acids

c)

Polypeptide

d)

Protein

34.

_____________ is when we take out one specific base and put another in.

a)

Substitution

b)

Insertion

c)

Deletion

d)

Frameshift

35.

True or False: Genetics is the study of genes, heredity, and variation in living things.

a)

True

b)

False

36.

Genetic codes are made of __________ which are like instructions or blueprints.

a)

DNA

b)

RNA

37.

______________ is when we move a whole segment as a result of a deletion mutation

a)

Frameshift

b)

Insertion

c)

Deletion

d)

Substitution

38.

___________ _____________ are traits in which the gene expression depends on the sec of the animal. Ex: includes horned vs polled sheep

a)

Sex Linked

b)

Sex Influenced

c)

Sex Limited

39.

________________ occurs when a gene at 1 locus affects a gene at another locus.

a)

Epistasis

b)

Heterosis

c)

Hybrid Vigor

40.

Different versions of a gene at a specific locus are called ________

a)

Alleles

b)

Genes

c)

Chromosomes

41.

The principle of _______________ is when alleles separate so that only 1 random allele is found in a particular gamete

a)

Independent assortment

b)

Separation

42.

All other body cells go through __________ to complete cell division.

a)

Mitosis

b)

Meiosis

43.

_____________ is when we take another base pair and put it in the stream.

a)

Substitution

b)

Insertion

c)

Deletion

d)

Frameshift

44.

Which of the following are pyrimidines?

a)

Thymine

b)

Guanine

c)

Cytosine

d)

Adenine

45.

______________ occurs when one gene does not fully mask the other, both are expressed.

a)

Co- Dominance

b)

Incomplete Dominance

c)

Partial Dominance

46.

_________ ___________ is the blending of the genes.

a)

Co-Dominance

b)

Incomplete Dominance

c)

Partial Dominance

47.

One sugar, phosphate, and nitrogenous bases makes up a _______________.

a)

Nucleotide

b)

Polypeptide

c)

Protein

48.

____________ is the frequency of times that a genotype appears in a population.

a)

Gene Frequency

b)

Genotypic Frequency

49.

Organisms that have an extra chromosome (2n+1)

a)

Polyploid

b)

Aneuploidy

c)

Monosomic

d)

Trisomic

50.

When does Heterosis or Hybrid Vigor occur ?

a)

A breed cross is more vigorous than purebred animals

b)

A breed cross is less vigorous than purebred animals

51.

____________________ traits are traits that are linked to the sex chromosome. Ex: Can include color blindness or sickle cell anemia

a)

Sex Linked

b)

Sex Influenced

c)

Sex Limited

52.

______________ is the number of times that a gene appears in a population.

a)

Genotypic Frequency

b)

Gene Frequency

53.

The removal of a base pair

a)

Deletion

b)

Substitution

c)

Frameshift

d)

Insertion

54.

Sex cells go through __________ to complete cell division.

a)

meiosis

b)

mitosis

55.

What is step one of DNA replication process?

a)

Unzipping (break hydrogen bonds): helicase

b)

Priming: RNA, primer, primase

c)

Polymerization: Reform DNA, DNA Polymerase

d)

Completion

e)

Proofreading

56.

What is step two in the DNA replication process?

a)

Unzipping (break hydrogen bonds) helicase

b)

Priming: RNA, primer, primase

c)

Polymerization: reform DNA, DNA polymerase

d)

Completion

e)

Proofreading

57.

What is step three in the DNA replication process?

a)

Unzipping (break hydrogen bonds) helicase

b)

Priming: RNA, primer, primase

c)

Polymerization: reform DNA, DNA polymerase

d)

Completion

e)

Proofreading

58.

What is step four in DNA replication process?

a)

Unzipping (breaking hydrogen bonds) Helicase

b)

Priming: RNA, Primer, Primase

c)

Polymerization: reform DNA, DNA polymerase

d)

Completion

e)

Proofreading

59.

What is step five in DNA replication process?

a)

Unzipping (break hydrogen bonds) Helicase

b)

Priming: RNA, primer, primase

c)

Polymerization: reform DNA, DNA polymerase

d)

Completion

e)

Proofreading

60.

2 same alleles @ locus

a)

Homozygous

b)

Heterozygous

61.

2 different alleles @ locus

a)

Homozygous

b)

Heterozygous

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