Genetics & Inheritance

JavaScript isn't enabled in your browser, so this file can't be opened. Enable and reload.

This section covers genetics and inheritance

Which of the laws of Mendel can be used to explain the result below? *

2 points

(i), (ii) and (iii)

(iii) only

(i) and (iii) only

(ii) and (iii) only

A child has blood group Ab and her mother's blood group is A. Which ONE of the options below provide a reasonable conclusion? *

2 points

Which statements describe the characteristics of discontinuous variation? *

2 points

P, Q and S only

P, R and S only

Q, R and S only

P, Q, R, and S

Which ONE of the following is the genotype of a person with haemophilia? *

2 points

Read the text below then answer the following question. What is the possible genotype for a black rabbit with narrow ears? *

2 points

BbEe

bbee

BBEe

Bbee

Read the text below and answer the following question. What is the possible genotype of gametes produced by a white rabbit with narrow ears? *

2 points

bbee

BE, Be, bE and be

bE and be

Based on the information below, which child is adopted? *

2 points

Nobuhle

William

Milly

Patrick

Answer the question below. *

2 points

What is the percentage chance that individuals 3 and 4, from the diagram below, would have a child with haemophilia? *

2 points

100%

75%

25%

If a recessive allele on the X-chromosome is passed on to the offspring it is an example of... *

2 points

sex-linked inheritance

incomplete dominance

multiple alleles

co-dominance

What is the percentage chance of a woman having a female child? *

2 points

25%

100%

50%

75%

Which ONE of the following resulted from Gregor Mendel's experiment with pea plants? *

2 points

The law of inheritance of acquired characteristics

The principle of independent assortment

The law of use and disuse

The theory of evolution

The plant is... *

2 points

Heterozygous dominant for height and heterozygous for flower colour

Heterozygous for height and homozygous dominant for flower colour

Homozygous recessive for height and homozygous dominant for flower colour

Heterozygous for both height and flower colour

Which ONE of the following shows possible alleles present in a gamete that is produced by the plant with yellow wrinkled seeds? *

2 points

YYss

yySS

Which ONE of the following is a possible representation of the genotypes of the P1 generation? *

2 points

YYSS x yyss

Yyss x yySs

YYSS x yySs

Yyss x YySs

A trait that has a range if phenotypes is an example of... *

2 points

continuous variation

discontinuous variation

complete dominance

codominance

The only possible blood type(s) of the offspring of the first generation (F1) is/are... *

2 points

The diagram above shows the blood types of two parents

AB and O

A and O

A only

A and B

Which ONE of the following combinations results in genetic variation in organisms? *

2 points

Mitosis; sexual reproduction; mutations

Meiosis; asexual reproduction; mutations

Mitosis; meiosis; sexual reproduction

Meiosis; sexual reproduction; mutations

The inheritance of one trait does not depend on the inheritance of another trait. This represents... *

2 points

Mendel's law of dominance

the law of codominance

the principle of variation

Mendel's principle of independent assortment

In mice, the genotype yy produces grey fur and Yy produces yellow fur. The genotype YY results in death during the early embryonic stages. A yellow female mouse is mated with a yellow male mouse. Which of the following shows the correct ratio of yellow to grey offspring that could be born alive? *

2 points

1:1

1:3

2:1

3:1

Brown eye colour in humans is dominant over blue eye colour. A man with brown eyes marries a woman with blue eyes. They have a son with brown eyes and a daughter with blue eyes. We can conclude that... *

2 points

the man is not the true father of the children

the man is heterozygous for eye colour

eye colour is sex-linked

both parents are homozygous for eye colour

Use XN and Xn to represent the relevant alleles of the characteristic. The possible genotype(s) of individual A will be... *

2 points

XNXn only

XNXN only

XNXN and XNXn

XNXN and XnXn

A possible reason for selecting sunflowers with a greater fruit weight is to...

2 points

provide a greater yield of seeds

improve the chances of fertilisation

have genetic variation

allow the plant to grow taller

Clear selection

A man with blood group A and a woman with blood group B have children. Their first child has blood group AB and the second child has blood group O. Which prediction about the blood groups of future children is CORRECT? *

2 points

Future children have a 50% chance of having blood group AB and a 50% chance of having blood group O

All will have blood group A or B

Each future child will have an equal chance of having blood group A, B, AB or O

None of the future children will have blood group A

When an individual that is homozygous dominant for a particular characteristic is crossed with an individual that is homozygous recessive for the characteristic, all the offspring would be...

2 points

homozygous dominant

homozygous recessive

heterozygous

pure-bred

Clear selection

Individuals of the same species may show genetic variation due to...

2 points

mitosis and meiosis only

meiosis only

mutations, random mating and random fertilisation only

meiosis, mutations, random mating and random fertilisation

Clear selection

The absence of the protein melanin results in the disorder called...

2 points

haemophilia

colour-blindness

albinism

down syndrome

Clear selection

The principles of inheritance were first outlined by … *

2 points

Gregor Mendel

Charles Darwin

Robert Broom

Watson and Crick

Two rose plants with pink flowers were crossed and it was found that although most of the offspring had pink flowers, some had red and some had white flowers. If 152 plants were produced in the F1-generation, how many of these plants were expected to have pink flowers? *

2 points

114

152

Two rose plants with pink flowers were crossed and it was found that although most of the offspring had pink flowers, some had red and some had white flowers. Breeders prefer to produce red roses. If the allele for red is R and the allele for white is W, which ONE of the following crosses would give the highest proportion of red roses? *

2 points

RR x WW

RW x RW

WW x RW

RR x RW

A genetic cross where both alleles of a gene are equally dominant is an example of... *

2 points

codominance

a dihybrid cross

incomplete dominance

complete dominance

Which ONE of the following is an example of non-disjunction? *

2 points

colour-blindness

gene mutations

down syndrome

haploid gametes

A red flowering plant is crossed with a white flowering plant. All the offspring have pink flowers. When the two pink flowering plants are crossed, the next generation of flowering plants will have flowers that are...

2 points

pink only

red only

white only

pink, red and white

Clear selection

Which fly is homozygous for antennae shape and heterozygous for body pattern? *

2 points

Fly 4

Fly 3

Fly 2

Fly 1

Which ONE of the following will represent the possible gametes for Fly 4? *

2 points

Ns, NS

Ns, ns

What is the genotype of fly 3? *

2 points

NnSS

NNSs

NnSs

NNss

The genotype for an individual with blood group A is... *

2 points

Which combination of statements is CORRECT? *

2 points

(i), (ii), (iii) and (iv)

(i), (iii) and (iv) only

(i), (ii) and (iv) only

(ii) and (iv) only

From the diagram below, one can conclude that the disorder is caused by a... *

2 points

recessive allele, with both parents heterozygous

dominant allele, with both parents heterozygous

recessive allele, with one parent homozygous recessive while the other is heterozygous

dominant allele, with one parent heterozygous while the other is homozygous recessive

Other:

(The diagram below serves the two questions below.) Which ONE of the following best describes the mutation? *

2 points

The diagram shows part of a DNA molecule below and after a mutation

More than one nitrogenous base was changed.

Adenine was changed to cytosine.

Adenine was changed to thymine.

Cytosine was changed to adenine.

Use the diagram from the previous question to complete the following statement: The mutation... *

2 points

will result in an extra chromosome.

will produce the same protein if a different amino acid is coded for.

will produce a different protein if a different amino acid is coded for

is the result of an extra chromosome

Submit

Clear form

Never submit passwords through Google Forms.

This content is neither created nor endorsed by Google. Report Abuse - Terms of Service - Privacy Policy

Forms