25 the allele for a widow's peak has complete dominance over the allele for a straight hairline (w). what is the probability of two parents heterozygous for a widow's peak (ww) having an offspring with a widow's peak? select one: a. 75 percent b. 50 percent c. 0 percent d. 25 percent

ratio by punnet square:

1 : 2 : 1

(WW : We : ww)

so the %age will be 25%

the correct answer is D. 25%

g1

choices:

a. g2. b. g1. c. m

cell division has two checkpoints namely, g1

checkpoint and spindle assembly checkpoint. the checkpoint which determines if

division has properly occurred is the g1 checkpoint. at this point, is a damage

in the dna is detected or  the has not reach the optimum size, the cell is

stopped in g1 and is not allowed to proceed to further process.

source:

lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.