Meiosis in reproductive organs (testes and ovary) produce gametes. Each human cell including reproductive cells contains 23 pair of chromosomes. Meiosis separates the two chromosomes from each pair thus, each gamete receives only one copy of each chromosome. Therefore, each gamete has 23 new chromosomes, one from each of the 23 pairs. During meiosis, exchange of chromosome segment between copies of a pair of chromosomes. The exchange of chromosome segments creates new combinations of genes which enhances genetic variability within a species.
<span><u>Mitosis </u>
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Mitosis </span>and meiosis are simply cell division processes that occurs differently, they're characteristically divergent from each other according to their function and structure. Mitosis is the cell division that happens in all cells in the human body except sperm and egg cells. They produce diploid cells. Meiosis on the other hand is responsible for the cell division of the gametes, spermatogenesis (sperm cells) and oogenesis (egg cells), such haploid cells. </span>
Answer;
-Midsagittal cut
A neuroscientist cuts a brain in half, along the division between the hemispheres. this cut is referred to as a midsagittal cut.
Explanation;
The midsagittal plane divides the human body into equal left and right halves. It is used to describe the sagittal plane as it bisects the body vertically through the midline marked by the navel, dividing the body exactly in left and right side.
-If divided along this plane, the deepest structures of the human body will be visible. Starting with the most superior portion of the body, visible would be the brain. Cutting along the midsagittal plane, the structures of the brain would be exposed including the pineal body, the corpus callosum, thalamus, midbarin, pons, medulla oblangata, hypothalamus, and the arbor vitae of the cerebellum.
Answer: Some mutations have a positive effect on the organism in which they occur. They are calledbeneficial mutations. They lead to new versions of proteins that help organisms adapt to changes in their environment. Beneficial mutations are essential for evolution to occur
Explanation:
Answer:
Cellular Respiration
Explanation:
Plants and animals break down simple sugars into carbon dioxide and water and release energy in the form of adenosine triphosphate (ATP).
