Which part of the cell controls the growth and development of the cell?

Genes are made from a substance called:

Clone can occur naturally through a process called:

In humans, there are two type of sex chromosomes, called X and Y chromosomes. A person with two X chromosomes is called:

Write the name of the plant Mendel choose as his experimental material.

A human body, as a single cell  consists of 23 DNA molecules from its father. How many molecules come  from its mother?

Write the chromosome numbers of dogs.

DNA molecule is copied so that one copy can be distributed to each of which type of cell?

Shape of the DNA molecule appears:

Name the two scientists who invented the structure of DNA molecule.