The diagram shows the formation of new diploid cells. What do arrows X and Y represent?

X = duplication of chromosomes; Y = mitosis

X = duplication of chromosomes; Y = meiosis

X = meiosis; Y = duplication of chromosomes

X = mitosis; Y = duplication of chromosomes

Sickle-cell anaemia is a genetic disease that is caused by the allele Hb S . Hb A is the normal allele. A woman does not have the symptoms of the disease but her brother does show symptoms. If her mother and father do not have symptoms, which statement is correct?

The woman’s father and mother both have the genotype Hb A Hb S .

The woman has the genotype Hb S Hb S .

The woman’s brother has the genotype Hb A Hb A .

The woman’s father and mother both have the genotype Hb S Hb S .

What is an example of genetic engineering?

producing plants that have been given genes for resistance to insect pests

using enzymes to make washing powders

using pectinase to make fruit juice

Pure-breeding black-feathered chickens are mated with pure-breeding white-feathered chickens. All of the individuals in the offspring in the F 1 generation have both black and white feathers. What will be the ratio of offspring phenotypes when two of the F 1 generation chickens are crossed?

1 black : 2 black and white : 1 white

The diagram shows reproduction in a potato plant. Potato X was planted into the ground and a plant grew from it. The plant then produced potato Y. Which statement is correct?

Y was produced by asexual reproduction.

X and Y are genetically different.

Y was produced by sexual reproduction.

Y was produced by the fusion of gametes.

The graph shows the masses of two different types of tomato. What can be concluded from the graph?

Type 1 tomatoes show continuous variation.

Genes do not affect the mass of tomatoes.

Type 2 tomatoes are sometimes smaller than type 1 tomatoes.

Type 2 tomatoes show discontinuous variation.

unspecialised cells that divide by mitosis to produce daughter cells

specialised cells that divide by meiosis to produce daughter cells

specialised cells that divide by mitosis to produce daughter cells

unspecialised cells that divide by meiosis to produce daughter cells

The list shows the diploid number of chromosomes of four organisms. fruit fly 8 human 46 potato 48 garden pea 14 What is the correct chromosome number of a male sex cell in each of these organisms?

fruit fly = 4; human = 23; potato = 24; garden pea = 7

fruit fly = 4; human = 46; potato = 12; garden pea = 7

fruit fly = 8; human = 46; potato = 48; garden pea = 14

fruit fly = 16; human = 92; potato = 96; garden pea = 28

The number of bacteria resistant to antibiotics is increasing. What has contributed to this situation?

not completing the course of prescribed antibiotics

choosing the antibiotic carefully to match the strain of bacterium

tracing, testing and treating people who have been in contact with the infected person

using antibiotics only when essential

Colour blindness is a condition that occurs more frequently in men than in women. Which statement about this condition is correct?

It is a sex-linked characteristic.

It can pass from father to son.

The gene is on the Y chromosome.

The diagram shows the phenotypes for blood groups in a family. Which statement about the genotypes of the parents is correct?

Both parents have the allele for blood group O.

Both parents have alleles for blood group A and B.

Only the father has the allele for blood group O.

Only the mother has the allele for blood group O.

The diagram shows a family tree and the inheritance of the ability to taste a certain substance. The allele for the ability to taste this substance is dominant. Which statement about the genotypes of the sisters Mary and Jeanne is correct?

Mary is heterozygous and Jeanne is homozygous.

Mary is homozygous and Jeanne is heterozygous.

Antibiotics often do not work as effectively against bacterial infections as they used to. What change has taken place in the bacteria, and what type of selection has brought this about?

change in the bacteria = have become resistant to the antibiotic; type of selection = natural

change in the bacteria = have become immune to the antibiotic; type of selection = artificial

change in the bacteria = have become immune to the antibiotic; type of selection = natural

change in the bacteria = have become resistant to the antibiotic; type of selection = artificial

Which definition of continuous variation is correct?

variation that results in a range of phenotypes between two extremes

variation that results in a limited number of phenotypes between two extremes

variation that results in a limited number of phenotypes with no intermediates

variation that results in a range of phenotypes with no intermediates

When is evolution by natural selection most likely to occur?

when there is more variation in the population

when there is a stable population of predators

when there is a stable environment

when there is less variation in the population

What are all reasons why bacteria are useful in genetic engineering?

They have the same genetic code as other organisms. They have plasmids. There is a lack of ethical concern about their use.

They are very small. They do not need large containers. They have no mitochondria.

They reproduce asexually. They can double their numbers in twenty minutes in good conditions. They have cell walls.

Their DNA is not in a nucleus. They have a cell membrane. They have a large surface area to volume ratio.

Corn is a crop plant. Glow-worms are organisms which give off light. Which process could use these two species to make corn plants which glow?

transferring genes from one species to another species

breeding the organisms together

causing mutations in the organisms

Which feature of sexual reproduction helps a species to evolve?

Offspring are the result of the fusion of the nuclei of dissimilar gametes.

Fewer offspring are produced than in asexual reproduction.

Offspring always inherit advantageous characteristics.

Offspring produced will always be in a suitable environment

The diagram shows a family tree and the inheritance of the ability to taste a certain substance. The allele for the ability to taste this substance is dominant. Which statement about the genotypes of the sisters Mary and Jeanne is correct?

Mary is heterozygous and Jeanne is homozygous.

Mary is homozygous and Jeanne is heterozygous.

What is not a feature of natural selection?

variation within the population

a random change in a gene or chromosome

a condition caused by a dominant allele

a process used in genetic engineering

G10 IGCSE Inheritance, Variation & Selection Quiz

9th - 11th Grade

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50 Qs

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G10 IGCSE Inheritance, Variation & Selection Quiz

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Science, Biology

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9th - 11th Grade

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Practice Problem

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50 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The diagram shows the inheritance of sex in humans.
What is the chance of the couple’s next child being male?

25%

50%

75%

100%

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of cell is produced by meiosis?

fertilised egg cell

leaf cell

red blood cell

sperm cell

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What will cause the rate of mutation to increase?

increase in exposure to ionising radiation

increase in genetic variation in a population

increase in phenotypic variation in a population

increase in the rate of reproduction

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A feature of some plants that live in dry places is that the leaves are reduced to spines.
What is an advantage of the leaves being reduced to spines?

decrease in photosynthesis

decrease in transpiration

increase in photosynthesis

increase in transpiration

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the transmission of genetic information from generation to generation known as?

cell division

inheritance

meiosis

mitosis

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The diagram shows the chromosomes in one human cell.
What can be concluded from the chromosomes in this cell?

The cell is from a man.

The cell is from a woman.

There are only 23 chromosomes per body cell.

There are only 46 pairs of chromosomes per sex cell.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The allele for detached earlobes is dominant to the allele for attached earlobes.
Two parents are heterozygous for detached earlobes.
What is the probability of their first child having attached earlobes?

25%

50%

75%

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G10 IGCSE Inheritance, Variation & Selection Quiz

50 questions

The diagram shows the inheritance of sex in humans.
What is the chance of the couple’s next child being male?

Which type of cell is produced by meiosis?

What will cause the rate of mutation to increase?

A feature of some plants that live in dry places is that the leaves are reduced to spines.
What is an advantage of the leaves being reduced to spines?

What is the transmission of genetic information from generation to generation known as?

The diagram shows the chromosomes in one human cell.
What can be concluded from the chromosomes in this cell?

The allele for detached earlobes is dominant to the allele for attached earlobes.
Two parents are heterozygous for detached earlobes.
What is the probability of their first child having attached earlobes?

Farmers have bred Holstein-Friesian cattle to produce more milk than older breeds of cattle.
Which process was used to produce these cattle?

Scientists have produced yellow rice called Golden Rice. Golden Rice has been produced by the insertion of genes into rice plants.

What is involved in the production of Golden Rice?

The diagram shows the formation of new diploid cells.
What do arrows X and Y represent?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

G10 IGCSE Inheritance, Variation & Selection Quiz

50 questions

The diagram shows the inheritance of sex in humans. What is the chance of the couple’s next child being male?

Which type of cell is produced by meiosis?

What will cause the rate of mutation to increase?

A feature of some plants that live in dry places is that the leaves are reduced to spines. What is an advantage of the leaves being reduced to spines?

What is the transmission of genetic information from generation to generation known as?

The diagram shows the chromosomes in one human cell.What can be concluded from the chromosomes in this cell?

The allele for detached earlobes is dominant to the allele for attached earlobes.Two parents are heterozygous for detached earlobes. What is the probability of their first child having attached earlobes?

Farmers have bred Holstein-Friesian cattle to produce more milk than older breeds of cattle. Which process was used to produce these cattle?

Scientists have produced yellow rice called Golden Rice. Golden Rice has been produced by the insertion of genes into rice plants. What is involved in the production of Golden Rice?

The diagram shows the formation of new diploid cells. What do arrows X and Y represent?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

The diagram shows the inheritance of sex in humans.
What is the chance of the couple’s next child being male?

A feature of some plants that live in dry places is that the leaves are reduced to spines.
What is an advantage of the leaves being reduced to spines?

The diagram shows the chromosomes in one human cell.
What can be concluded from the chromosomes in this cell?

The allele for detached earlobes is dominant to the allele for attached earlobes.
Two parents are heterozygous for detached earlobes.
What is the probability of their first child having attached earlobes?

Farmers have bred Holstein-Friesian cattle to produce more milk than older breeds of cattle.
Which process was used to produce these cattle?

Scientists have produced yellow rice called Golden Rice. Golden Rice has been produced by the insertion of genes into rice plants.

What is involved in the production of Golden Rice?

The diagram shows the formation of new diploid cells.
What do arrows X and Y represent?