Science Write the Correct Alternative.

If one parent is carrier and one parent is a sufferer of sickle-cell anaemia, then the progenies will be

If one parent is normal and one parent is carrier of sickle-cell anaemia, then the progenies will be

is a recessive character in human beings.

is a dominant character in human beings.

is a dominant character of pea plant.

is a recessive character of pea plant.

is a monogenic disorder.

is a mitochondrial disorder.

Progenies of normal man and sufferer woman for sickle-cell anaemia will be

arises due to either inheritance of only X chromosome from parents or due to inactivation of the gender-related part of X-chromosomes.

In a monohybrid cross, the phenotypic ratio of F, generation is

The molecule of RNA which is a component of the ribosome organelle is called a

The double helix model of DNA was produced by

DNA was discovered by

Which of the following is absent in RNA?

Sex chromosomes are called

The chromosome in which the centromere is near one end of the chromosome is called chromosome.

The chromosome in which the centromere is somewhere near the mid-point is called chromosome.

The chromosome in which the centromere is exactly at the mid-point is called chromosome.

Each chromosome appears midway during cell division.

The similarities and differences are all the effect of