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90948: Genetics revision

Total questions: 67

Worksheet time: 34mins

Name
Class
Date
1.

An example of a homozygous recessive genotype is...

a)

Aa

b)

AA

c)

aa

2.

An example of a homozygous dominant genotype is...

a)

Aa

b)

AA

c)

aa

3.

An example of a heterozygous genotype is...

a)

Aa

b)

AA

c)

aa

4.

Which word matches the description: the combination of alleles an organism has for a gene

a)

Genotype

b)

Phenotype

c)

Karyotype

d)

Prototype

5.

Which word matches the description: the expression of the combination of alleles an organism has for a gene

a)

Genotype

b)

Phenotype

c)

Karyotype

d)

Prototype

6.

Which word matches the description: the number and type of chromosomes contained within an organism's cells

a)

Genotype

b)

Phenotype

c)

Karyotype

d)

Prototype

7.

Which word matches the description: a section of DNA that codes for a protein

a)

Gene

b)

Allele

c)

Chromosome

d)

DNA

8.

Which word matches the description: a different version of a section of DNA that codes for a protein

a)

Gene

b)

Allele

c)

Chromosome

d)

DNA

9.

Which word matches the description: a threadlike structure made of nucleic acids and proteins found within the nucleus of an organism's cells

a)

Gene

b)

Allele

c)

Chromosome

d)

DNA

10.

Which word matches the description: a molecule made of nucleotides that carries the code for making proteins

a)

Gene

b)

Allele

c)

Chromosome

d)

DNA

11.

Which of the following correctly describes the ways that the bases of DNA pair up in the double helix structure?

a)

AC, GT

b)

AG, CT

c)

AT, GC

d)

CA, GT

12.

Which word matches the description: an alternation in the base sequence of DNA (which may or may not lead to a change in the phenotype of an organism)

a)

Mutation

b)

Variation

c)

Meiosis

d)

Mitosis

13.

Which word matches the description: the differences between the individuals of a species

a)

Mutation

b)

Variation

c)

Meiosis

d)

Mitosis

14.

Which word matches the description: the type of cell division that produces gametes

a)

Mutation

b)

Variation

c)

Meiosis

d)

Mitosis

15.

Which word matches the description: the type of cell division that produces somatic cells

a)

Mutation

b)

Variation

c)

Meiosis

d)

Mitosis

16.

An individual has a mutation. Which type of mutation will be passed to an individual's offspring?

a)

Germ-line mutation

b)

Silent mutation

c)

Somatic mutation

d)

Point mutation

17.

What is the genotype of individual 1?

Unaffected (A) is dominant to affected (a)

a)

AA

b)

Aa

c)

AA or Aa

d)

aa

18.

What is the genotype of individual 2?

Unaffected (A) is dominant to affected (a)

a)

AA

b)

Aa

c)

AA or Aa

d)

aa

19.

What is the genotype of individual 3?

Unaffected (A) is dominant to affected (a)

a)

AA

b)

Aa

c)

AA or Aa

d)

aa

20.

What is the genotype of individual 6?

Unaffected (A) is dominant to affected (a)

a)

AA

b)

Aa

c)

AA or Aa

d)

aa

21.

What is the genotype of individual 4?

Unaffected (A) is dominant to affected (a)

a)

AA

b)

Aa

c)

AA or Aa

d)

aa

22.

What is the genotype of individual 5?

Unaffected (A) is dominant to affected (a)

a)

AA

b)

Aa

c)

AA or Aa

d)

aa

23.

What is the genotype of individual 1?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

24.

What is the genotype of individual 3?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

25.

What is the genotype of individual 4?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

26.

What is the genotype of individual 13?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

27.

What is the genotype of individual 14?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

28.

What is the genotype of individual 15?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

29.

What is the genotype of individual 16?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

30.

What is the genotype of individual 2?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

31.

What is the genotype of individual 5?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

32.

What is the genotype of individual 6?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

33.

What is the genotype of individual 7?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

34.

What is the genotype of individual 8?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

35.

What is the genotype of individual 10?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

36.

What is the genotype of individual 11?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

37.

What is the genotype of individual 12?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

38.

What is the genotype of individual 9?

Piebald (H) is dominant to normal (h)

a)

HH

b)

Hh

c)

HH or Hh

d)

hh

39.

What is the genotype of individual 1?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

40.

What is the genotype of individual 3?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

41.

What is the genotype of individual 5?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

42.

What is the genotype of individual 6?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

43.

What is the genotype of individual 7?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

44.

What is the genotype of individual 8?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

45.

What is the genotype of individual 14?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

46.

What is the genotype of individual 2?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

47.

What is the genotype of individual 4?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

48.

What is the genotype of individual 11?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

49.

What is the genotype of individual 12?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

50.

What is the genotype of individual 9?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

51.

What is the genotype of individual 10?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

52.

What is the genotype of individual 13?

Affected (F) is dominant to unaffected (f)

a)

FF

b)

Ff

c)

FF or Ff

d)

ff

53.

When doing a test cross, an individual should be bred with a...

a)

Homozygous dominant individual

b)

Heterozygous individual

c)

Homozygous recessive individual

d)

Any individual

54.

A test cross is to used to confirm whether an individual's genotype is ... or ... (select 2)

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

d)

Any genotype

55.

Which of the following form new alleles?

a)

Mutations

b)

Crossing over

c)

Independent assortment

d)

Random fertilisation

56.

Which of the following form new combinations of alleles?

a)

Mitosis

b)

Crossing over

c)

Independent assortment

d)

Random fertilisation

57.

How many daughter cells are produced from meiosis?

a)

1

b)

2

c)

3

d)

4

58.

How many daughter cells are produced from mitosis?

a)

1

b)

2

c)

3

d)

4

59.

Which type of reproduction produces offspring that are genetically identical to the parent?

a)

Sexual reproduction

b)

Asexual reproduction

60.

Which type of reproduction produces offspring that are genetically different to the parent?

a)

Sexual reproduction

b)

Asexual reproduction

61.

Which type of reproduction better protects a population of a species again environmental changes?

a)

Sexual reproduction

b)

Asexual reproduction

62.

Which type of reproduction is typically faster, allowing for a population of a species to increase quickly?

a)

Sexual reproduction

b)

Asexual reproduction

63.

Crossing over occurs during meiosis. Which division does this occur prior to?

a)

1st

b)

2nd

c)

3rd

d)

4th

64.

Gametes are...

a)

Haploid

b)

Triploid

c)

Diploid

d)

Polyploid

65.

Human somatic cells are...

a)

Haploid

b)

Diploid

c)

Triploid

d)

Polyploid

66.

Brown hair is an example of...

a)

A genotype

b)

A phenotype

c)

An allele

d)

A gene

67.

An individual being homozygous recessive for a trait is an example of...

a)

A genotype

b)

A phenotype

c)

An allele

d)

A gene

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