The correct answer is more than 50 percent.
The proportion of the volume of red blood cells to the volume of the entire blood is known as the hematocrit level. The general range for hematocrit varies among the sexes and is about 45 to 52 percent in the case of men and 37 to 48 percent in the case for women.
A high hematocrit level with a high hemoglobin and high red blood cells count suggest polycythemia. Polycythemia refers to the condition in which the quantity of red blood cells in the blood increases.
The uterus relaxes is muscles after being stretched open. When the baby is about to be pushed out, the uterus contracts many times until the baby is out of the female's body.
Answer:
The correct option is option A
Explanation:
Restriction enzymes are endocleases that cleave DNA fragment (<u>of usually four, five or six nucleotide long</u>) at <u>specific sites to produce blunt or sticky ends</u>. They <u>recognize palindromic sequences of host DNA when cleaving the specific sites</u>. The sequences below (on complementary strands) give an example of a palindromic sequences.
5'-CCC║GGG-3'
3'-GGG║CCC-5'
As can be seen above, when read from 5' to 3', the two sequences are the same despite being on opposing strands. And when cut between the guanine (G) and cytosine (C) (as shown above), it produces a blunt end. But when cut as shown below produces a sticky end.
5'- G║AATTC -3'
3'- CTTAA║G -5'
The explanation above shows options C and D are right while option A is wrong (hence the correct option).
Also, bacteria prevent their own DNA from been digested by restriction enzymes by adding methyl group to their restriction sites <u>which prevents restriction enzymes from recognizing restriction sites of their DNA;</u> this generally makes bacterial DNA to be highly methylated. This explanation makes option B right also.
<span>This is because the mass of the object is displacing the water, causing the water to float around the object rather than pushing the object with the water.</span>
