Biology Heredity Quiz past HSC questions

Welcome to your Biology Heredity Quiz past HSC questions, 5 randomly generated questions relevant to module 5 heredity module from past HSC exams have been chosen. Aim to answer these in roughly 10 minutes.

In maintaining homeostasis, which of the following is a behavioural adaptation?

Sweating to cool down

Curling up in a ball to keep warm

Speeding up or slowing down cell metabolism

Skin going red as more blood flows to surface

Many transgenic crops have been genetically engineered to have traits such as herbicide resistance. In at least four different crops the transgene has been found in nearby wild plant relatives of the cultivated crops.

What is the most likely reason for this observation?

Crossing over in the wild plants

Gene flow from the crops to the wild plants

Genetic drift from the crops to the wild plants

Mutations in the wild plants that match the transgenes

Cystic fibrosis is an autosomal recessive disorder caused by mutations in the CFTR gene. Many different recessive alleles cause cystic fibrosis

a1/a1

a1/a2

A/a1

A/A

The images show the sequence of changes in the chromosomes (stained black) during mitosis in plant cells.

Crossing over occurs during prophase.

Sister chromatids separate during anaphase.

Two daughter cells are produced during telophase

Homologous pairs of chromosomes line up in metaphase.

Which of the following photographs shows an example of sexual reproduction?

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