1. The diagram below shows a happy family of mice, with two parents and four offspring.
However, one of the offspring mice is an imposter. The black fur parent has the genotype FF Ee
and the white fur parent has the genotype ff Ee. Given these parent genotypes, which offspring
mouse could not have been born to these parents?
- A. Offspring A (Ff Ee)
- B. Offspring B (FREE)
C. Offspring C (Ffee)
D. Offspring D (ff EE)

D. Offspring D (ff EE)

Explanation:

The response is the genotype ff EE because the black fur parent has the genotype FF Ee, thereby it is impossible to have a offspring with the genotype ff (one allele is inherited from the female parent and one from the male parent)

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!

answer///multiple alleles;