Polyallelism.
Poly means many. So, when there are more than two alleles for the same gene locus we call it of polyallelism. This makes genetic variability much bigger because there are several alleles for a possible location in a chromosome and this would make, for example, from two parents a possible combination of two out of four possible alleles if between them they had all different alleles.
Answer:
True, by active transport
Explanation:
The influx and efflux of molecules through the cell membrane depend on the concentration gradient.
When the molecules down their concentration gradient that is from higher concentration to lower concentration are known as passive transport but sometimes the cell has to transport the ions against the concentration gradient.
When the ions move against the concentration gradient, they use energy in the form of ATP molecules and then transport the ions. This is known as active transport.
In the given question, since the sodium ions move inside the cell against the concentration gradient by the active transport.
If the atom is neutral (not an ion), it would have the same number of protons as electrons. Thus, 10 protons.
The number of genetically unique gametes that can be produced by an organism where 2n = 20 cell is 40.
The reason is that there are 20 cells in the organism, so there are 20 possible ways for them to arrange themselves.
For example, if you have two identical cells and a third cell that is not identical to either one, then the total number of potential arrangements is (3 + 1) = 4. This means that there are 24 viable arrangements for three cells to form a diploid organism with two sets of chromosomes.
However, if you have only two cells and no other cells, then there are only 10 viable arrangements: 2 identical and 8 different non-identical combinations.
To learn more about gametes visits: brainly.com/question/2569962
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