| 1 |
A purple flowered pea plant has the genotype PP, which of the following statements about this plant is FALSE. |
Its phenotype will be white flowers .
It has a homozygous dominant genotype.
When bred to a white flowered plant all offspring will be purple flowered.
All the gametes produced will have the same flower colour allele
|
| 2 |
Mendel's primary contribution to our understanding of inheritance was: |
The idea that genes are found on chromosomes
Explanation of the patterns of inheritance
The discovery of alleles
Determining that informations contained in DNA are for protein synthesis.
|
| 3 |
Which of the following statement regarding genes is FALSE. |
Genes are located on chromosomes
Genes consist of a long sequence of DNA
A gen contains information for the production of a protein
Each cell contain a single copy of every gene.
|
| 4 |
How many genetically different kinds of gametes an individual with genotype AAbb can produce? |
1
2
4
9
|
| 5 |
In the cross-pollination between a true-breeding yellow pod plant and a true-breeding green pod plant, where green pod colour is dominant, the resulting offspring will be. |
1/4 green , 3/4 yellow
All yelow
1/4 yellow, 3/4 green
All green
|
| 6 |
An organism's expressed physical trait, such as seed colour or pod shape is called its. |
Genotype
Phenotype
Physical type
Karyotype
|
| 7 |
Where the sperms of male rabbit are deposited in the female rabbit? |
Horns
Cervix
Follicle
Ovaries
|
| 8 |
Where the sperms of rabbit are produced? |
Cowper's glands
Prostate gland
Collecting ducts
Seminiferous tubules.
|
| 9 |
In which group of mammals, the fertilized egg do not develop inside the mother's body? |
Chordates
Egg laying mammals
Placental mammals
All of these
|
| 10 |
Many diploid oogonia are present in : |
Follicles
Sperms
Spermatids
Scrottum
|
| 11 |
The optimum temperature for the germination of the seeds of most plants ranges from: |
20 - 30 <sup>o</sup>C
25 - 35<sup>o</sup>C
25 - 30<sup>o</sup>C
20 - 25<sup>o</sup>C
|
| 12 |
Which of these germinate by epigeal germination? |
Pea
Maize
Beans
Coconut
|
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