Answer:
In order to study or detect individual genes or specific DNA regions or mutations of interest, it is often necessary to obtain a large quantity of nucleic acid for study. Rather than isolate a single copy of the target DNA from a large number of cells, it is often more useful to generate multiple copies of a target from a single molecule of DNA or mRNA, via an in vitro amplification method.
Explanation:
Closely related organisms pass through similar embryonic stages. The earlier the divergence of embryos occurs between two species, the more distant their most recent common ancestor, as with the vertebrate/insect gastrea example above
Answer:
c
Explanation: I am doing the same assignment and it was c
Answer:
A gene mutation refers to a permanent change in the sequence of DNA, which forms a gene, that is, the sequence varies from what is witnessed in the majority of the individuals. The mutations vary in size, they can influence anywhere from a base pair to a huge section of a chromosome, which comprises multiple genes.
The mutations result in extreme modifications in a species if they modify the manner in which a protein functions. However, a mutation, which directs the formation of altered proteins or the unexpected amounts of proteins is the most general way by which a mutation contributes to disease.
Answer:
Adaptations help organisms either: hide from predators, obtain food, or survive harsh environments. So overall, adaptations help a species survive.
