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What is on the Y chromosome that may provide instructions for sperm production?
The much smaller Y chromosome has only about 26 genes and gene families. Most of the Y chromosome genes are involved with essential cell house-keeping activities (16 genes) and sperm production (9 gene families). Only one of the Y chromosome genes, the SRY gene, is responsible for male anatomical traits.When any of the 9 genes involved in sperm production are missing or defective the result is usually very low sperm counts and subsequent infertility. About 1/3 of couples is unable to have children as a consequence of the male mate not having the necessary sperm producing genes on his Y chromosome. The Y chromosome has few active genes and mostly contains genetic junk rather than genes.
Which is larger the egg cell or the sperm cell?
Egg cells are the biggest: you could only fit one on the head of a pin. But I'm not sure if a sperm cell is bigger than a red blood cell or vice versa.
How much sperm is neeeded to become pregeant?
Technically one sperm cell can get you pregnant, but it is unlikely with one.
What is the DNA in the nucleus?
DNA in the nucleus is very much like ingredients in a cookbook. The contain genes from your parents and their parents and their parents...etc..
How much does a human sperm weigh?
A single human sperm cell typically weighs about 3 picograms, or 0.000000000003 grams.
How much chromosomes does a dog's sperm cell have if it has seventy-eight chromosomes?
23
Why is an egg much larger then a sperm cell?
because god make it so
How are sperm cells adapted to carry out their job?
fuq u
What would happen if all the genes in a cell were always active?
If all genes in a cell were always active, it could lead to chaos and dysfunction in the cell. Gene expression needs to be tightly regulated to ensure that the right genes are active at the right time and in the right amount. Without proper regulation, the cell might not be able to function correctly, leading to potential problems such as uncontrolled growth or cell death.
How much sperms are requried to get pregnant?
all it requires is a single sperm cell, and a bit of extra information here, a single discharge of male sperm contains millions of sperm cells.
Friday you straddled your boyfriend both of us wearing normal jeans the next day your period got much much lighter and you started getting very hungry and upset very quickly can you be pregnant?
Pregnancy happens after a sperm cell from the male enters the female's vagina and finds its way to the female's egg cell. If the genes stayed on and the zippers stayed closed, then it's not likely that any sperm cells got to where they needed to go in order to cause pregnancy.
How much larger than a sperm cell is an ovum?
An ovum is typically around 80 times larger than a sperm cell. This size discrepancy is due to the differences in function and composition of the two cells, with the ovum containing the necessary components to support early embryonic development.
