Answer:
All the possible alleles for a gene with multiple alleles cannot be expressed by single individual
Explanation:
Gene pool refers to the sum total of all the alleles of all the genes which are present in a population. Human beings are diploid organisms. One individual can have only two possible alleles for a gene. A gene can have two or more than two alleles. Since all the possible alleles for a gene with multiple alleles cannot be expressed by single individual, a gene pool cannot be made of one individual.
If errors occur at any one stage, the cell can stop cell division from progressing
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1. Cenozoic - humans
2. Mesozoic - dinosaurs
3. Paleozoic - fishes & reptiles
4. Precambrian - unicellular organisms
Answer:
The process of asexual reproduction works by mitosis in which a parent cell divides into two or more new identical daughter cells. The number of chromosomes is never changed in such kind of division. A cell must make a copy of its genetic material before the process to ensure that each daughter cell carries the same genome as the parent cell. Vegetative propagation, budding, binary fission etc are examples of some of the methods of asexual reproduction.
Answer:
metal
Explanation:
Metals have unique characteristics that differ from other substances: they are solid, do not let light (they are opaque) and conduct electricity and heat well, having a special shine called metallic. When heated they are malleable and can be molded into various shapes, from wires to plates and bars. For these reasons, we can say that a malleable and ductile material - or capable of being hammered into different shapes without breaking and being pulled by a wire - is probably a metal.