Answer:
The correct option is (A).
Explanation:
The base-pairing rule illustrates the pairing of purine and pyrimidine bases in the construction of nucleic acids. Adenine and guanine are purines and pyrimidines are cytosine, thymine, and uracil.The total number of base-pair defines the size of the genome of an organism.
Uracil is exclusively present in the RNA. We can infer that purine base pairs with pyrimidine. So, adenine pairs with thymine in the DNA strand with the help of two hydrogen bonds and guanine pairs with cytosine that is supported by the presence of three hydrogen bonds.
In case of RNA adenine forms double bond with the uracil residue.
Answer: Hip Bone
Explanation:
Hematopoiesis is a semi-solid tissue which is found in the cancellous or spongy portions of the bones.
In adult human, bone marrow is found in many bones of the body such as in the sternum, ribs and bones of pelvis. On an average the 4 % of the whole body mass is bone marrow.
In case of any blood forming tissue problem the tissue sample are usually extracted from the pelvic bone because this is one of the actively participating regions in the body of adult.
hence, the correct answer is hip bone.
<span>The different types of immune response fall into two categories; innate (non adaptive) and adaptive immune responses.
All the Best. :D</span>
Well there is 7 kingdoms, that they are sorted into. But they are sometimes sorted depending on whether or not they have a nucleus.
-Gives thumbs up-