10) Somatic cells of Drosophila simulans have a diploid chromosome number of 8. Drosophila are unusual among animals in that crossing over during meiosis does not occur in males. What is the probability that a sperm cell from a male contains replicas of only those chromosomes the male received from his female parent?

Meiosis from a diploid cell comprises four genetically distinct chromosomes (egg cells or sperm cells). A diploid cell contains an entire collection of chromosomal pairs. That pair contains a single parent chromosome. These chromosome pairs are not the same or are homologous (equivalent) clusters, as they contain numerous gene loci.  

For example:- One specific place.

Explanation:

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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