In the context of the Hardy-Weinberg Principle, what does the variable q2 represent?
The Hardy-Weinberg equation is p2 + 2pq + q2 = 1. In this equation, q is the frequency of the recessive allele, and q2 is the frequency of the homozygous recessive genotype.
Question 202 of 519
📘 CLASS XII
The subject that deals with the inheritance, as well as the variation of characters from parents to offspring, is known as _______.
Genetics is the branch of biology that deals with the inheritance, as well as the variation of characters from parents to offspring.
Question 203 of 519
📘 CLASS XII
Inheritance is the process by which characters are passed on from parent to progeny; it is the basis of _______.
Inheritance is the process by which characters are passed on from parent to progeny; it is the basis of heredity.
Question 204 of 519
📘 CLASS XII
Mendel investigated characters in the garden pea plant that were manifested as two opposing traits, such as tall or dwarf plants, or yellow or _______ seeds.
Mendel investigated characters in the garden pea plant that were manifested as two opposing traits, e.g., tall or dwarf plants, yellow or green seeds.
Question 205 of 519
📘 CLASS XII
A true-breeding line is one that, having undergone continuous self-pollination, shows the stable trait inheritance and expression for several _______.
A true-breeding line is one that, having undergone continuous self-pollination, shows the stable trait inheritance and expression for several generations.
Question 206 of 519
📘 CLASS XII
In Mendel's monohybrid cross between tall and dwarf pea plants, all plants of the first hybrid generation ($F_1$ progeny) were _______.
Mendel observed that all the F1 progeny plants were tall, like one of its parents; none were dwarf.
Question 207 of 519
📘 CLASS XII
In the F2 generation of a monohybrid cross, the dwarf character, which was not seen in the F1 generation, was expressed in the proportion of _______ of the F2 plants.
The proportion of plants that were dwarf were 1/4th of the F2 plants while 3/4th of the F2 plants were tall.
Question 208 of 519
📘 CLASS XII
Genes which code for a pair of contrasting traits are known as _______, which are slightly different forms of the same gene.
Genes which code for a pair of contrasting traits are known as alleles, i.e., they are slightly different forms of the same gene.
Question 209 of 519
📘 CLASS XII
The allelic pair of genes for height in a true breeding tall or dwarf pea variety are considered identical or _______, such as TT and tt.
In a true breeding, tall or dwarf pea variety the allelic pair of genes for height are identical or homozygous, TT and tt, respectively.
Question 210 of 519
📘 CLASS XII
The descriptive terms, such as tall and dwarf, used to describe the appearance of a plant are called the _______.
TT and tt are called the genotype of the plant while the descriptive terms tall and dwarf are the phenotype.
