Answer:
The amount of target DNA segments doubles with each cycle of PCR.
Explanation:
A polymerase chain reaction is an in vitro technique that is performed in the labs to replicate the DNA from a very small amount of DNA sample. The DNA sample is replicated or double in a very small amount of time that is the target sample doubles after each cycle.
The PCR technique is based on the DNA replication mechanism and thus employs the primer, A Taq DNA polymerase enzyme and the adequate amount of temperature.
Thus, the selected option is correct.
Answer:
I would split these organisms into two paraphyletic groups: 1-one group composed of wolfs and dogs, and 2-one group including all three species (dogs, wolves and cats).
Explanation:
A clade is by definition a monophyletic group, it means that a clade is a group composed of a common ancestor and all its lineal descendants. Moreover, a paraphyletic taxon is a group of organisms that share a most recent common ancestor and some of its descendants. In this case, wolves and dogs can be grouped to form a more inclusive group since both species belong to the same genus (Cani), while dogs, wolves and cats can be grouped to form a major group because these three species are mammal species. In consequence, in this case, we have two paraphyletic groups supported by synapomorphic (shared, derived) characters, since wolfs and dogs represent only two species within genus Canis, while dogs, wolves and cats represent three species within class Mammalia.
Answer: 1. Phosphatidyl serine: the phosphoserine group
2.Sphingomyelin: the phosphocholine group
3.Cholesterol: the hydroxyl group
4. Triacylglycerol: the ester bond between glycerol and fatty acids.
Explanation:
Amphipathic molecules have parts that are hydrophobic and hydrophilic. The cell membrane is made up of amphipathic molecules.
Phosphatidyl serine has a polar (hydrophilic) head named the phosphoserine group, the fatty acid group forms the chain.
Sphingomyelin consist of phosphicholine and ceramide. The phosphocholine group is the hydrophilic part while the ceramide is the hydrophobic part.
Cholesterol contains a hydroxyl group (-OH) that is polar while the rest part of the cholesterol is non polar.
Triacylglycerol is made up of glycerol and 3 fatty acid chains. The ester bonds between glycerol and the fatty acids is the Polar part of triacylglycerol.
Answer:
It's visual
Explanation:
That's the short answer it's because it visual. A pedigree has squares, circles, half colored squares and half colored circles and lines drawn to show the offspring or marriage. To me, it's like looking at a family tree except it's genetics! That's one way on how it simplifies the analysis of inheritance. Just a note to remind you about pedigrees. Squares are males and circles are female. If the box or circle is half colored with black, they are a carrier for a genetic disease (it depends on what their family has had like diabetes or sickle cell disease).