Answer:
Chromosomes contain very large genetic information which would take many hours to replicate with only one origin.
Explanation:
Human cells are eukaryotes, meaning that the genetic information is compressed in chromosomes, that at the same time are contained in the nucleus. As the replication requires all the genetic information to be copied, the length of it would take several hours to complete this task. Therefore, with many origins of replication, this process happens faster and more effectively.
<span>Complete this statement. A person with Rh+ blood may receive blood that is RH or HR while a person with Rh- blood can only receive RH blood.</span>
The right answers are <span>androgens for male; estrogen and progesterone for female.
<u>MALE HORMONES:</u>
The term androgen defines the hormones causing the appearance of male sexual characteristics such as hair. These androgen hormones are naturally secreted by the adrenal glands, testes, but also the ovaries in women.
<u>FEMALE HORMONES:</u>
Estrogens are all hormones secreted by the ovary. The level of this hormone in the blood increases especially at the time of ovulation. But it is also produced in small quantities by the testicles in males.
After the release of the egg during the menstrual cycle, the ovary continues to work. The cells of the empty shell (called the corpus luteum) that contained the egg thus make progesterone on the second part of the cycle, before having a further fall in their production at the beginning of the next cycle.
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Answer:
B) The chromatids of each chromosome are separated.