The chromosomes are made up of Deoxyribonucleic Acid (DNA) and a protein called……….
a) adenine
b) cytosine
c) Histone
d) none of these
A typical human
chromosome contains…….. million nucleotides in its DNA.
NTS PST (B) -------2021
a) 140
b) 150
c) 160
d) 170
DNA is made up of units called………………
a) histone
b) nucleotides
c) genes
d) cytosine
DNA has short segments called……….
a) genes
b) parent cell
c) Nucleus
d) chromosome
How many types
of nucleotides?
a) 2
b) 3
c) 4
d) 5
DNA on chromosomes forms……..
a) factors
b) proteins
c) genes
d) sugars
Explanation:A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases.
