Biology

Which nitrogenous base is present in DNA but absent in RNA?

How many autosomes are found in a human sperm cell?

What is the genotypic ratio of a monohybrid cross in the F2 generation?

Which of the following is a primary source of genetic variation?

Chromosomes are mainly composed of which two components?

What does the term 'Hybrid' mean in genetics?

The study of heredity and variations is called:

In a Punnett square, the horizontal and vertical labels represent:

Which of the following is a recessive trait in humans?

DNA stands for:

Who proposed the double helix model of DNA?

What is the basic unit of DNA?

A cross involving only one pair of contrasting characters is called:

Where are genes located inside a cell?

If a cross is made between two hybrid tall plants (Tt), what percentage of offspring will be dwarf?

Which of these is the correct base pairing in DNA?

How many sex chromosomes are there in a human skin cell?

What is the term for a gene that can only express itself in the homozygous state?

Which of the following determines the sex of a child?

If a homozygous tall plant (TT) is crossed with a homozygous dwarf plant (tt), what will be the genotype of the F1 generation?