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2 years ago

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In the DESERT BIOME, which of the following could be an example of commensalism?

1 answer:

Vikentia [17]2 years ago

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In the DESERT Biome , which of the following could be an example of commensalism?

A. A gopher snake occupies a burrow made by the desert rat.

B. A chipmunk takes shelter in an oak tree and is protected from predators and in return, disperses seeds around the area.

C. Wasps lay eggs in the case of eggs laid by the praying mantis. When the wasp eggs hatch, the larvae feeds on the eggs of the praying mantis.

D. A tapeworm gets into a moose and causes harm

E. A fox follows a caribou that removes the snow covering to get to the lichens under the soil. The fox then hunts the animals that have been uncovered.

<u>F. A desert coyote eats fruit and in return disperses the seeds of the fruit around through its scat (poop). </u>

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Suppose a point mutation, such as a change from an adenine to a guanine, occurs in the genome of a human sperm cell. The mutatio

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Answer:

B. The mutation results in a new, dominant allele

C. The mutation occurs in a gene that controls development and alters differentiation of a cell type during development.

D. The mutation occurs in a codon and alters the function of the final protein

Explanation:

All the above things will change the <u>ultimate expression</u> or phenotype by altering the proteins. Choices B, C, and D will all change the outer functioning.

Choice A only affects the rate of transcription, so it may go faster or slower, but the end product will be the same.

This part that doesn't look like it's one of the choices ("The mutation occurs in a portion of an intron not responsible for exon splicing.") would not affect phenotype, because introns are removed before the RNA is sent out.

Choice E says that the amino acid sequence is unchanged, meaning the protein final product will be the same and the expression will not change.

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