A mitotic cdk-cyclin complex triggers entry into mitosis.
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Cdk-cyclin complex consists of two units: cdk which is a cyclin-dependent kinase (catalytic subunit) and cyclin (regulatory subunit). This complex play a crucial role in cell cycle progression. There are different types of cdk-cyclin complex, for example, Cdk1-cyclin B1 complex triggers entry into mitosis (progresses the cell cycle through G2/M mitotic phase).</span>
This soft, waxy substance is found not only in your bloodstream but also in every cell in your body, where it helps to produce cell membranes, hormones, vitamin D, and bile acids that help you digest fat. Cholesterol also helps in the formation of your memories and is vital for neurological function.
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<u>Biology is the branch of science.</u>
<u>Human biology is the branch of biology that focuses on human beings and hum</u>an <u>pop</u><u>ulation. </u>
<u>Social</u><u> </u><u>biology</u><u> </u><u>is</u><u> </u><u>the</u><u> </u><u>branch</u><u> </u><u>of</u><u> </u><u>biology</u><u> </u><u>that</u><u> </u><u>is</u><u> </u><u>the</u><u> </u><u>study</u><u> </u><u>of</u><u> </u><u>s</u><u>o</u><u>c</u><u>i</u><u>a</u><u>l</u><u> </u><u>behaviour</u><u> </u><u>of</u><u> </u><u>animal</u><u> </u><u>and</u><u> </u><u>human</u><u>. </u>
Unlike women, men do not experience a major, rapid (over several months) change in fertility as they age (like menopause). Instead, changes occur gradually during a process that some people call andropause. Aging changes in the male reproductive system occur primarily in the testes.