About how many different combinations of chromosomes can be produced through the random fertilization of human gametes?

2²³x 2²³

Explanation:

Over 8 million (2²³) chromosome combinations exist in the production of gametes in the male and female. A sperm cell, with over 8 million chromosome combinations, fertilizes an egg cell, which also has over 8 million chromosome combinations.

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.

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