A Population of Beetles Lives on a Forest Floor,which Is

question 40

Multiple Choice

A population of beetles lives on a forest floor,which is covered in dark leaf litter.Dark beetles have the genotype A₂A₂,while lighter beetles have an A₁A₁ genotype;heterozygotes have a phenotype that is closer to that of the A1A1 homozygotes.The oppresso bird preys on these beetles.What do you predict will be the outcome of this predation over time?

• A)The colour of each beetle within the population will gradually change over time.
• B)Beetles will have darker-shelled offspring to protect them from predation.
• C)The proportions of beetles having different traits within a population change over time.The proportions of beetles having different traits within a population change over time.
• D)Behaviours learned from the beetles will be passed onto their offspring.
• E)A mutation will arise that will result in a darker shell colour and protect the beetles from predation.

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Definitions:

Meiosis

A type of cell division that reduces the genetic material by half, producing four gamete cells, each with unique genetic information.

Somatic Cells

Any cell of a living organism other than the reproductive cells.

Oocytes

The immature precursors of ovum or egg cells in females, which mature through the process of oogenesis.

Estrogen

A group of steroid hormones that play a crucial role in the development and regulation of the female reproductive system and secondary sex characteristics.