B. Clade 1 is ancestral to all the other clades
I think you got both right yk?
Answer:
llbb
Explanation:
<em>The genotype of the black, short-haired otter could be determined by testing-crossing with a brown, long-haired otter whose genotype would be </em><em>llbb</em><em>.</em>
Analysis of the resulting zygote from the cross would give an indication of the genotype of the otter - whether it has two dominant alleles each for the black, short-hair traits or heterozygous.
<u>If the otter has two dominant alleles for the two traits, all the resulting zygote from the test-cross would have black, short-hair, but if it is heterozygous, a mixed phenotype set of zygote would be obtained.</u>
Echinoderms utilize their tube feet by exploiting their water vascular, so their tube feet are essentially controlled by a water weight framework. Tube feet are adjusted to alternate uses in the gatherings of echinoderms by having the capacity to utilize their tube feet to join to objects and in addition for insurance and the picking up their supplements.