1 |
Adenine always pairs with: |
thymine
guanine
cytosine
uracil
|
2 |
It is a homozygous genotype: |
AA
aa
Aa
both A and B
|
3 |
How many genotypes are possible for the allele ''A'' and ''a'' ? |
two
three
four
seven
|
4 |
The alternate forms of a gene are called: |
traits
companion genes
alleles
homologous genes
|
5 |
In human body cells the number of chromosomes present are: |
23
46
52
48
|
6 |
Genes are located on: |
Chromosomes
proteins
nucleotide
DNA
|
7 |
Inside testes the sperms are produced in: |
vas deferens
sperms duct
seminiferous
collecting ducts tubules
|
8 |
Seed is formed form: |
ovary
ovule
radicle
plumule
|
9 |
in the life cycle of plants how many generations alternate with each other? |
two
four
five
three
|
10 |
The function of male and female gametes is called: |
fertilization
pollination
propagation
reproduction
|
11 |
Male gametes are called: |
sperms
eggs
testes
ovaries
|
12 |
Seedless fruits plants are propagated by: |
cloning
suckers
cutting
grafting
|