For obtaining an adequate amount of DNA samples for DNA fingerprinting, polymerase chain reaction (PCR) can be used.
Polymerase chain reaction (PCR) is a technique that is used to amplify the DNA sample. The steps included in PCR are:-
1. Denaturation of the double-stranded DNA (at around 95°C)
2. Annealing of the primers to each of the single-stranded DNA templates ( at around 65°C)
3. Extension or elongation of the primers by considering every single-stranded DNA as a template. This elongation is carried out by <em>Taq </em>polymerase (at around 72°C).
With each cycle of PCR, the DNA sample is increased by 2ⁿ. Here, 'n' represents the number of PCR cycles.
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Answer:
Chromosomes
Explanation:
Genes are segments of DNA, but they are found in Chromosomes.
Please let me know if this is any good
Equal to the rotation period
Answer: This is a case of incomplete dominance inheritance because we can asume that the tail length is a trait with 2 alleles (no tail and long), but is posible to see 3 fenotypes, long, no tail, and medium which can be consider as a half way between long and no tail.
The phenotypes that seem a mix of two traits have heterozygous genotype, in this case the two parental cats have genotype Ll (assuming L as the symbol for long tail) since they have medium tails
When 2 heterozygous individual cross, the proportions according to Mendel's laws is:
25% offspring: Homozygous dominant
25% offspring: Homozygous recesive
50% offspring: Heterozygous
This proportions are quit similar to those obtained in the exercise
2/11 = 18 % Long tail: LL
3/11 = 27% No tail: ll
6/11 =54% Medium tail: Ll
The answer is D; homeostasis allows the maintenance and regulation of stability and constancy that is needed to properly function. It is found in cells, tissues and organisms,