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Answered by Lewys B. • Biology tutor
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The allele y occurs with a frequency of 0.8 in a population of clams. Give the frequencies of the genotypes YY, Yy and yy.

To do this we use the Hardy-weinburg equation.p 2 +2pq+q 2 =1frequency of y = q, frequency of Y=pFirst we work out the frequency of Y(p)p+q=11-0.8=0.2p=0.2Then we plug our p and q values into the equation to...
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What are the three main properties of the genetic code?

Triplet code - a sequence of three bases (called a codon) codes for an amino acid. Degenerate code - more than one codon can code for a single amino acidnon-overlapping - the bases in the genetic code are re...
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Describe the main differences between mitosis and meiosis

Number of cell divisions: there is 1 cell division in mitosis and 2 in meiosis. Daughter cells: mitosis produces 2 daughter cells genetically identical to each other and the parent cell, whereas meiosis prod...
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Answered by Jennifer A. • Biology tutor
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Describe how an action potential is generated.

The generation of an action potential occurs in 4 main steps (resting potential, depolarisation, repolarisation and hyperpolarisation). At resting potential, the membrane potential is about -70mV. A stimulus...
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