Write the possible genotypes Mendel got, when he crossed F₁ tall pea plant with a dwarf pea plant.

Why is a plant with genotype Tt referred to as heterozygous'?

Why in a test cross, did Mendel cross a tall pea plant with a dwarf pea plant only?

What will be the percentage of gametes ry , formed by an individual with genotype RrYy ?

What will be the karyotype of an individual who has developed from the zygote formed by an XX egg fertilized by a Y sperm ?Name the abnormality with which he will be suffering from .

Show through a cross all the possibility of the genotypes of the progeny when a man with blood group B marries a women with blood group A, both heterozygous for the trait.

What is the probability of Haemophilia in the son when a normal homozygous women is married to a Haemophilic man?

Write the sex chromosomes compliment of the following.
a) Human female & male
b) Male and Female grasshopper

Given below is a diagrammatic sketch of the hand of a person.

a) Name or mention the genetic feature.
b) Make a pedigree of the character to mention its inheritance? What do the circles and squares in the chart represent respectively?
c) Is it a sex linked character? Give reason in support of your answer.

When you will find the percentages of crossing over will be more
a) When linked genes are located close to each other.
b) When linked genes are located far apart from each other.
c) When genes are not linked.

What is the advantage of presence of sickle allele in the heterozygous condition?

The genetic disorders can be grouped under two broad categories- Mendelian disorders And chromosomal disorders which one of two can be traced in a family by pedigree chart? Name two such disorders.

Turner's syndrome is a sterile female generally with normal intelligence and known viable monosony in humans. Is the combination '44+YO' is also viable. Justify?

Name a cross whose progenies can easily be analyzed to predict the genotype of the organism under observation?

Mendel followed a definite sequence of steps in making a cross between tall and Dwarf pea plants to study the inheritance of one gene. Mention them in proper order.

Which of the following is a recessive or dominant trait in garden pea?
a) Tall stem b) Wrinkled seeds c) Green color seed coat d) Constricted pod.

What is the proof for or what indicates that the characters Mendel studied did not show blending?

Do you think Mendel's law of inheritance would have been different if the characters he chose were located on the same chromosome? Why?

When a tall pea plant was self-pollinated, one-fourth of the progency were dwarf.  Give the genotype of the parent and the dwarf progenies.

Why do certain genes tend to be inherited together in a cell at the time of cell division?