Answer:
The correct answer is B the extra chromosome has typically undergone significant rearrangements.
Explanation:
Trisomy is a type of aneuploidy which is characterized by the presence or occurance of an extra copy of a particular chromosome.As a result the chromosomes in which the trisomy is occurring contain 3 arms instead of 2. Trisomy occur due to non disjunction of a particular chromosome during meiosis.
As a result a second copy of chromosome is present inside the cell containing that abnormal chromosome.If the same thing occur in the cell of gamet undergoing fertilization then there is a high chance that the embryo will carry that extra chromosome.
In case of humans Trisomy result in the rearrangement extra chromosome which ultimately give rise to
1 Trisomy 18 occur due to extra copy of chromosome no 18
2 Trisomy 13 occur due to extra copy of chromosome no 13
3 Trsomy 21 occur due to extra copy of chromosome no 21 which is also called down syndrome.
Answer:
CHOICE B, GROUP 4.
Explanation:
THIS IS THE CONTROL GROUP BECUASE THEIR ICE WAS UNCOVERED AND HAD NOTHING EFFECTING IT'S MELT TIME.
Answer:
I agree
Explanation:
In the first graph, the DNA is split in the way that it splits Mitosis, and in graph 2 it splits the way it does during Meiosis.
<span>Mutations generated in a species gene pool important because mutations cause evolution.</span>