Genetics terminology - class-XII
Description: genetics terminology | |
Number of Questions: 24 | |
Created by: Sharvani Hegde | |
Tags: biology genetics - some basic fundamentals mendel's law of inheritance heredity: from parents to offsprings botany heredity classical genetics heredity and evolution inheritance |
Choose the correct answer from the alternatives given.
In a monohybrid cross between two heterozygous individuals, percentage of re homozygous individuals obtained in $F 1$ generation will be ________.
Mendel formulated the law of purity of gametes on the basis of
Which of the following is considered as physical and chemical unit of heredity?
Which of the following is considered as unit of inheritance?
Which of the following term was used by Mendel for hereditary units?
For green coloured pod and rounded seed, which is the functional unit of inheritance?
A gene is
Which of the following is true regarding genes?
Which of the following is an INCORRECT statement regarding genetic material?
Which of the following part of DNA contains genes?
How many genotyprs are possible from a across between the parent $RR$ and $rr$ ?
In pea plants, the long-stem trait $(L)$ is dominant and the short-stern trait $(I)$ is recessive. Two pea plants were crossed, producing seeds that yielded 165 long-stem plants and 54 short-stem plants. The genotypes of the parent plants were most likely
Gene library or DNA library has collection of
When a cross is made between two parents with respect to a single character, it is called as
A cross in which a single pair of contrasting characters is studied at a time is called as_____________
Mendel formulated the law of purity of gametes on the basis of _______________
A breeding experiment studying a single trait is
A husband and wife have normal vision but fathers of both of them were colour blind. Probability of their first daughter to be colour blind is
Biological unit controlling heredity is ___________.
According to modern concept, Mendel's factor is called as_____________
What is the correct sequence from least complex to most complex in terms of the amount of information they carry?
III. Codon
IV. Gene
A tall plant was grown in nutrient deficient soil and remained dwarf. When it is crossed with dwarf plant then
In Drosophila, the allele for a normal grey body colour G is dominant to ebony body g. The following table summarises the results of several crosses.
S. No. | Cross | Result |
---|---|---|
1. | strain 1*gg | all wild-type |
2. | strain 2*gg | 1 wild type: 1 ebony |
3. | strain 3*gg | all ebony |
4. | strain 4*Gg | 3 wild type:1 ebony |
Which strain both have the genotype Gg?