Question

Q1 state the definition of Net primary productivity? 1mark

Q2 How apomixis is differentiate from polyembryony? 1mark

Q3 what are dominant alleles? 1mark
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Answer 1

Answer:

1.The rate at which an ecosystem accumulates energy or biomass, excluding the energy it uses for the process of respiration. This typically corresponds to the rate of photosynthesis, minus respiration by the photosynthesizers

2.Polyembryony is the process in which the fertilization of single egg leads to the formation of two or more embryos. The difference between apomixis and polyembryony is that the apomixis does not involve fertilization while polyembryony is the result of fertilization.

3.Dominance may be a relationship between two alleles of 1 gene that affect the phenotype of 1 allele and masks the contribution of another allele. The trait which is expressed in a phenotype is called the dominant trait and the suppressed one is called a recessive trait.