Botany-Principles of Inheritance and Variation - Online Test

Q1. The innate tendency of offspring to resemble their parents is called
Answer : Option D
Explaination / Solution:

The innate tendency of offspring to resemble their parents is called heredity. The offspring resembles to parent due to same genetic combination inherited from parents.

Q2. Monohybrid ratio is
Answer : Option D
Explaination / Solution:

Monohybrid ratio is the ratio of different phenotypic traits obtained on hybridizing single pair of trait. It is 3:1. When tall pea plant is crossed with dwarf, the offspring obtained are in 3/4 tall and 1/4 dwarf.

Q3. Genotype is the
Answer : Option A
Explaination / Solution:

Genotype is the genetic combination of an individual. TT and Tt are genotypically different but phenotypically appear tall.

Q4. Who is regarded as the father of genetics?
Answer : Option A
Explaination / Solution:

Mendel is regarded as the father of genetics due to his initial law of inheritance given by him on the basis of Hybridisation conducted by him on garden pea.

Q5. Material used for conducting experiments on genetic traits by Mendel was
Answer : Option B
Explaination / Solution:

Mendel conduct his hybridization experiment on garden pea (Pisumsativum) using different contrasting pair of traits.

Q6. The tendency of offspring to differ from parents is called
Answer : Option C
Explaination / Solution:

Variation is the tendency of offspring to differ from its parents. Variation occurs due to change in genetic makeup of offsprings.

Q7. The physical expression or appearance of a character is called as
Answer : Option D
Explaination / Solution:

The physical appearance of a character is called as phenotype. The genetic make of individual is called genotype. Tallness, round, wrinkled, yellow etc. are physical appearance.

Q8. The alternate forms of a gene is called
Answer : Option B
Explaination / Solution:

The alternate forms of a gene are called alleles. Each trait is controlled by a pair of alleles.

Q9. Each gametes carry
Answer : Option A
Explaination / Solution:

Each gametes carry single set of chromosomes. During gamete formation each pair of alleles separate from each other as reduction division occurs.

Q10. The best method to determine the homozygous and heterozygous of an individual is
Answer : Option A
Explaination / Solution:

Homozygous and heterozygous of an individual is determined by test cross method in which homozygous recessive is crossed with F1 hybrid individual.