Answer:
A) There will be less genetic variation from recombination of risk of not adapting quickly to environmental changes
Explanation:
Natural selection: It is the process of adapting a species by a natural selection in the environment by the selection to change in re productivity in geno-type. It is processed in which the genes are selected and preserved for the future. These genes are those which survival chances are more and this selection of generation to generation has been multiplied. The genetic frequency the same generation to generation. The mutation is another that leads to a change in the generation that takes a population and occurs at a very low cost.
Answer:
oceanic plate going down: subduction
theory of crustal structure: plate tectonics
fjord: drowned glaciated valley
isostasy: buoyancy
deepest ocean depths: trench
Answer:
Co-dominance
Explanation:
Considering the allele for red pigment as C<em>R</em> and that for a white pigment C<em>W</em>, a pink flower will equally express both the pigments in its phenotype and will thus have a genotype of C<em>R</em> C<em>W</em>.
Crossing CR CW × CR CW you'll get,
25% C<em>R</em> C<em>R</em> - red flowers
50% C<em>R</em> C<em>W</em> - pink flowers
25% C<em>W</em> C<em>W</em> - white flowers
The answer is C) 4.
<span>
It is known that gametes are haploid cells. Haploid
cells have only one allele in the loci. Each gamete will contain each of these four different alleles. That means that there will be four different types of gametes containing four different alleles.</span>
Options have not been provided for the question. They are as follows:
What is the correct order for these genes using a linkage map analysis?
A. Z-X-Y-W
B. X-W-Z-Y
C. W-X-Y-Z
D. Y-W-Z-X
E. Z-X-W-Y
F. Y-X-W-Z
Between which two genes is crossing over most likely to occur?
A. B and D
B.X and Z
C. X and W
D. X and Y
E. W and Z
F. Y and W
G.Y and Z
Answer:
Correct order for these genes using a linkage map analysis: E. Z-X-W-Y
Two genes between which the crossover is most likely to occur: G.Y and Z
Explanation:
According to linkage concept, recombination frequency between two genes = distance between two genes in cM
Here, smallest distance is between X and W ( 7cM ) so they are present next to each other. Distance between X and Y is 17cM and between W and Y is 10cM so W is present between X and Y. Distance between X and Z is 13 cM. Since on one side of X, W and Y are already present Z lies on the other side. So, the final gene order comes out to be, Z-X-W-Y.
According to the gene order, Y and Z genes are farthest from each other. Chances of crossover or recombination increases with increasing distance between genes. So, Y and Z have the highest probability to show crossing over.
