Now, listing each possible genotype and the number of times they show up in the square: SSBB 0 times SSBb/SSbB 0 times SSbb 0 times SsBB/sSBB 4 times SsBb/SsbB/sSBb/sSbB/ 4 times Ssbb/sSbb 0 times ssBB 4 times ssBb/ssbB 4 times ssbb 0 times
Since there are only 4 genotypes are possible, set up ratios of those four:
SsBB: 4 times/16 total = .25 = 25%
SsBb: 4 times/16 total = .25 = 25%
ssBB: 4 times/16 total = .25 = 25%
ssBb: 4 times/16 total = .25 = 25%
This means that the<em> genotypes</em> have a 25% : 25% : 25% : 25% likelihood.
Now, let's figure out the phenotypes of the 4 genotypes: SsBB: Ss = dominant BB = dominant
SsBb: Ss = dominant BB = dominant
ssBB: ss = recessive BB = dominant
ssBb: ss = recessive Bb = dominant
So we have 2/4 that are S-dominant B-dominant and 2/4 that are S-recessive B-dominant. This means that the phenotypes are: 2/4 = 50% Thin stripes with black eyes, and 2/4 = 50% Thin stripes with gray eyes.
Increasing uncontrolled poaching acts as some kind of <em>"selective pressure"</em>.
Animals that carry the genes to grow tusks are removed from the population, and most of the surviving animals are those that do not have tusk and that carry the gene for tusklessness.
Tuskless animals get to reproduce more frequently, transmitting the tusklessness gene to their progeny, and hence, increasing its frequency in the population.
Explanation:
Due to technical problems, you will find the complete question, the answer, and the explanation in the attached files.
1 diploid cell (2n) cell becomes 4 haploid (n) germ cells (eggs or sperm). During meiosis, chromosomes are replicated once in S phase (just like mitosis), but the cell divides twice. ... The result: chromosomes after meiosis are genetically unique and have combinations of DNA derived from both parents.
