Answer:
The correct answer is B)10%. See the explanation below, please.
Explanation:
We use the following equivalence, remembering that Adenina pairs with Timina and Guanina with Cytosine:
A=T ; C=G A+G=T+C
If A= 40% ----> T=40%
A+G=T+C
40%+G= 40% +C ----> 40+10=50
G=C=10%
Answer: Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
By the end of meiosis, the resulting reproductive cells, or gametes, each have 23 genetically unique chromosomes. The overall process of meiosis produces four daughter cells from one single parent cell.
Explanation:
During meiosis, homologous chromosomes (1 from each parent) pair along their lengths. The chromosomes cross over at points called chiasma. At each chiasma, the chromosomes break and rejoin, trading some of their genes. This recombination results in genetic variation.
Answer:
Explanation:
The first mass extinction is called the Ordovician-Silurian Extinction. It occurred about 440 million years ago, at the end of the period that paleontologists and geologists call the Ordovician, and followed by the start of the Silurian period. In this extinction event, many small organisms of the sea became extinct.
Answer:
You will have to find many different methods in which the resource is most useful. Some resources may be useful in one place and some may be useful in another its all about how you use the resource.
Explanation:
Answer: Depends on where you live, in the U.S. its considered unconsitutional, but in other countries such as china, goverment offcials in bioharzard suits can take you.
Explanation:
