IG8 9A - Variation and Evolution Quiz

Variation is:

• a disease.

• the scientific name for fertilisation.

• differences in characteristics.

• similarities in characteristics.

Of the following, which is the best example of an environmental variation?

• a suntan

• blood group

• chin shape

• having earlobes

Environmental variation is caused:

• when organisms breed.

• by environmental factors.

• by varieties.

• by problems in the brains of some animals.

What sort of variation does this chart show?

• disrespectful

• dominant

• discontinuous

• continuous

Of the following, which is the best example of an inherited variation?

• eye color

• speaking Spanish

• a scar

• a broken leg

Inherited characteristics in humans are caused by:

• blood.

• children learning things from their parents and at school.

• genetic information.

• the country in which children grow up.

Genetic information can be found in a sperm cell in the:

• cytoplasm.

• tail.

• tip of the head.

• nucleus.

The overall shape of this chart is called:

• even distribution

• uneven distribution

• normal distribution

• norman distribution.

Each chromosome contains one molecule of a certain substance. What is this substance?

• integrin

• deoxyribodipyrimidine

• DNA

• protein

The total number of chromosomes in a human liver cell is 46. Therefore, the number of chromosomes in a human egg cell is:

• 23.

• 46.

• 92.

• 0.