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What is the difference between meiosis and mitosis?

Cell division can be achieved by either mitosis or meiosis. Cell division via mitosis is essential for growth and repair and occurs in nearly all cells in the body, whereas cell division by meiosis occurs in...
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Answered by Priyesh P. • Biology tutor
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Genetics: How does our genotype influence our phenotype?

The human genome consists of 46 chromosomes, specifically 44 autosomal chromosomes, similar in both males and females, and 2 gender specific sex chromosomes (X and Y). It has been known for many years, based...
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Answered by Phoebe V. • Biology tutor
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Sexual Reproduction: How does a sperm and egg form a baby?

Once a month, following ripening, a single egg is released from a woman's ovaries during the menstrual cycle, with the hope of fertilisation. During the act of sexual reproduction, the father's sperm is depo...
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Answered by Phoebe V. • Biology tutor
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What is the difference between the humoral and cell-mediated immune repsonses?

The humoral repsonse removes the pathogenic microorganisms which don't enter the cells and requires antibodies produced by B lymphocyctes. Different B lymphocyte cells produce different antibodies, each of w...
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Answered by Lily C. • Biology tutor
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When do mutations not cause a change in amino acid sequence?

The genetic code is degenerate - this means that amino acids can be coded for in more than one way. In an mRNA sequence coding for a protein, each amino acid in the protein is encoded by one codon (set of th...
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Answered by Ellen P. • Biology tutor
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