All of the cells found in the blood come from bone marrow. They begin their life as stem cells, and they mature into three main types of cells— RBCs, WBCs, and platelets.
Both parents are normal. But, some of the kids have the disease. This indicates that the parents are heterozygous for the disease (let's use Dd). They are phenotypically fine because D is normal. But we know they must both carry the diseased d allele because their kids have the disease.
If you cross Dd x Dd you get DD, Dd, Dd and dd as the possible outcomes. But because each time they have a child they roll the dice as to which of the 4 above happens, they were unlucky as 3 of those times they got dd for their child...so 3 of them have the disease (and are dd). One is phenotypically normal but could still be Dd or DD.
Answer:
BECAUSE THEY FEED OFF OF OTHER ORGANISMS
Explanation:
The answers are insertion, deletion and substitution respectively.
<h3><u>Explanation</u>:</h3>
The mutation is the phenomenon which includes some alteration of the genetic material of the organism by either insertion, deletion or substitution of one or more nitrogen base pairs by others. This phenomenon was invented by Scientist Sir Hugo de Vries, who was also called as the Father of Mutation.
The insertion includes the addition of one or few nitrogen base pairs within the DNA which changes the codon pattern, thereby changing the protein coded from that part of DNA. T
The deletion includes the deletion of a part of DNA with similar effect as that of Insertion.
The substitution is the change of nitrogen bases by other bases which also leads to change in protein produced by the part of Genetic material.
