Arecessive mutant allele of an autosome gene in a species of mouse results in a shorted tail in males when homozygous. however, when homozygous in females, this genotype has no effect, and the mice have normal tails. what is this genetic phenomenon called?

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes