Identical twins inherit their genes from
the same ovum and different sperms
the same sperm and different ova
different sperms and many ova
the same ovum and the same sperm
many ova and many sperms
Correct answer is D
No explanation has been provided for this answer.
One of the major criticisms against Mendelian laws is that they do not recognise that
one trait is often controlled by many pairs of genes
single factor inheritance is never a reality
complete dominance is always possible
incomplete dominance is not possible
hybrids exist in living organisms
Correct answer is A
No explanation has been provided for this answer.
One of the factors that must be considered for safe blood transfusion is
social class of the donor
age of the recipient
rhesus factors of the donor and the recipient
nationality of the donor
weight of the recipient
Correct answer is C
No explanation has been provided for this answer.
| Maize cob | White | Pink | Red |
| I | 30 | 60 | 30 |
| II | 50 | 99 | 49 |
Which of the following ratios agrees with the result?
9:3:3
1:2:1
1:3:1
2:1:1
2:3:2
Correct answer is B
No explanation has been provided for this answer.
Which of the following is the underling principle in the adoption of biological control of pests?
Knowledge of agricultural practices by the farmer
relationship between plants and animals
the presence of poisonous chemicals in the farm
the relative population of plants and animals in the farm
The predator-prey relationship in the ecological community
Correct answer is E
No explanation has been provided for this answer.