Genes are made from a substance called:
Nucleus
Chromosome
DNA
Cytoplasm
Write the chromosome numbers of pea plant.
89
14
23
46
In humans, there are two type of sex chromosomes, called X and Y chromosomes. A person with two X chromosomes is called:
Female
Male
Autosomes
All of these
Write the chromosome numbers of dogs.
34
56
45
78
DNA molecule is copied so that one copy can be distributed to each of which type of cell?
Two daughter cells
Gene cell
Two parent cells
Cells
How many chromosomes are there in human body?
36
Shape of the DNA molecule appears:
Spider ladder
Single strand ladder
Circular
Rectangle
Write the name of the sheep which was the first successfully cloned at the end of the 20th century.
Promithya
Coppy cat
Dolly
Eve
Eggs and sperms join together to form:
Embryo
Zygote
A human body, as a single cell consists of 23 DNA molecules from its father. How many molecules come from its mother?
46 DNA molecules
26 DNA molecules
23 DNA molecules
20 DNA molecules