Answer:
yes evolution do exist in nowadays also.
Answer:
D.
Explanation:
DNA consists of genetic material
Answer:
In scientific reasoning, a hypothesis is an assumption made before any research has been completed for the sake of testing. A theory on the other hand is a principle set to explain phenomena already supported by data.
Explanation:
Answer:
Gonadotrophin
Explanation:
*GONADOTROPHINS:These are *hormones produced by the anterior lobe of the pituitary gland that regulate the male and female reproductive organ*. The two Gonadotrophins are *Follicle stimulating hormone(FSH) and Luteinising hormone(LH)*. Both are glycoproteins.
*Follicle stimulating hormone stimulates spermatogenesis by stimulating the sertoli cells to complete the development of spermatozoa from spermatids*.
*Luteinising hormone stimulates the synthesis of the hormone "testosterone" by the leydig (interstitial cells) of the testis*. Testosterone is a steroid hormone and is made from cholesterol, It stimulates growth and development of the germinal epithelial cells (spermatogonia) to form sperms,and also works with follicle stimulating hormone to stimulate sertoli cells.
Answer:
The correct answer is: S phase.
Explanation:
DNA can be divided into two functional forms: heterochromatin and euchromatin. Heterochromatin refers to the DNA that doesn't code for proteins or RNA, and thus it remains heavily condensed, for there would be no use to use it for transcription or translation. Euchromatin, on the other hand. is the DNA with the genes that can be transcripted into RNA and translated into proteins; for this reason, Euchromatin is less compact than Heterochromatin.
<u>The only point in the cell cycle where Heterochromatin would be decondensed is </u><u>S phase</u><u> because, in this part of the cell cycle, the </u><u>DNA gets replicated</u><u> in order to prepare for Mitosis</u>. For DNA to be replicated, it first needs to be decondensed to their two strands can be separated and used as guides for the synthesis of the two new strands.
