Principles of I...

When one gene is responsible for affecting more than one characteristics, the phenomenon is known as

Assume that blue flowered plant is dominant character over the white. When a blue flowered plant is crossed with its white flowered plant, the progeny showed 50% of plants with blue flowers is with white flowers. The genotypes of blue and white parents respectively are

The inheritance of sex chromosomes in human can be described by the fact that:

An experiment was performed to test the ability of one wild type and four mutant strains of E.coli  bacteria to grow in either minimal media or media that was supplemented with various amino acids.

Supplement                None              Arginine
Wild-type                    $$+$$             $$+$$
Strain 1                      $$-$$              $$+$$
Strain 2                      $$-$$              $$-$$
Strain 3                      $$-$$              $$-$$
Strain 4                      $$+$$             $$+$$

Supplement                Threonine              Histidine
Wild-type                    $$+$$             $$+$$
Strain 1                      $$-$$              $$-$$
Strain 2                      $$+$$              $$-$$
Strain 3                      $$-$$              $$+$$
Strain 4                      $$+$$             $$+$$
A $$\left(+\right)$$ sign indicates growth and a $$\left(-\right)$$ sign indicates no growth.
One of the following is true for strain 2:

In albinism, the absence of which pigment makes the skin and hair light coloured?

Which of the following is true for the inheritance of sex chromosomes in humans?

The position of an altered amino acid sequence in a protein and position of a mutation in a gene are

Most mutations are the result of

Choose the correct statement about tetraploid individual.

All of the following cause extinction except