Y11BIA01: Quiz 1

Which organisms reproduce via binary fission?

• Fungi

• Plants

• Animals

• Bacteria

What type of mutagen is ultraviolet radiation?

• Physical

• Chemical

• Biological

• Naturally occurring

A cross between a white rose and a red rose produces offspring that all have pink flowers.

Which of the following would best describe the pattern of inheritance?

• Sex-linkage

• Co-dominance

• Multiple alleles

• Incomplete dominance

What is the best description of a mutation occurring in the reproductive tissues of an organism and passed onto half its offspring?

• Somatic

• Genetic

• Germ-line

• Environmental

Identify the effector in the negative feedback loop below.

• Hand

• Arm muscle

• Thermoreceptor

• Central nervous system

Scurvy is a disease caused by lack of Vitamin C and can be prevented by eating fresh fruits and vegetables.

How can this disease be classed?

• Genetic

• Cancer

• Nutritional

• Environmental exposure

Hydrangeas are blue in acidic soils and pink in alkaline soils. What is this an example of?

• Environment affecting phenotypic expression

• Environment affecting genotypic expression

• Genes affecting phenotypic expression

• Genes affecting genotypic expression

Which of the following could be considered an ancient form of biotechnology?

• Gene splicing

• DNA amplification

• Selective breeding

• Recombining DNA

What is a disadvantage of genetic technologies?

• Pest-resistant crops

• Decreased biodiversity

• Insulin production for diabetics

• Crops with increased nutritional value

In pea plants a tall allele (T) is dominant over a short allele (t).

Which punnet square depicts a 1:1 ratio of tall plants to short plants?

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