Short Answer TypeState what is apomixis. Comment on its significance. How can it be commercially used?
During a monohybrid cross involving a tall pea plant with a dwarf pea plant, the offspring populations were tall and dwarf in equal ratio. Work out a cross to show how is it possible.
What does the following equation represent? Explain
p2 + 2 pq + q2 = 1
The equation of p2 + 2pq + q2 = 1 represents the genotypic frequencies of a population, when it is in Hardy-Weinberg equilibrium.
According to this law, the frequency of occurrence of alleles of a gene in a population remains constant through generations unless disturbances, such as mutations and non-random mating, are introduced.
Individual frequencies are represented as p and q such as in a diploid, where p and q represent the frequency of allele A and a respectively. The sum total of all allelic frequencies is 1.
The frequency of genotypes, AA is p2, that of aa is q2 and that of Aa is 2pq.
Hence, p2 + 2pq + q2 = 1, which is the expansion of (p + q)2.A heavily bleeding and bruised road accident victim was brought to a nursing home. The doctor immediately gave him an injection to protect him against a deadly disease.
(a) Write what did the doctor inject into the patient's body.
(b) How do you think this injection would protect the patient against the disease?
(c) Name the disease against which this injection was given and the kind of immunity it provides.
Rearrange the following in the current sequences to accomplish an important biotechnological reaction :
(a) In vitro synthesis of region of DNA of interest
(b) Chemically synthesized oligonucleotides
(c) Enzyme DNA-polymerase
(d) Complementary region of DNA
(e) Genomic DNA template
(f) Nucleotides provided
(g) Primers
(h) Thermostable DNA-polymerase (from Thermus aquaticus)
(i) Denaturation of ds-DNA
Switch
