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3 years ago

What is the function of chromosomes?

Biology

1 answer:

sashaice [31]3 years ago

6 0

Chromosomes are a thread like structure that makes sure that you pass on genetic material to your offspring.

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Explain the differences in the three types of RNA by connecting it to a factory.

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When corn plants are too tall, they lodge (topple over) prior to harvest. This is bad since the grain is often lost when it cann

Shalnov [3]

Answer:

The phenotypic variance= 2113

The eenvironmenal variance= 644

The genetic variance= 1469

The broad-sense heritability = 0.695

Explanation:

To determine the phenotypic variance, we need to know the calculate the environmental variance and the genetic variance first;

because Phenotypic variance = V(p) such that;

V(p) = V(e) + V(g)

where V(e) = environmental variance and V(g) = genetic variance

Therefore, Environmental variance can be defined as a portion of phenotypic variance due to differences in the environments to which the individuals in a population have been exposed. The total amount of variance observed is dependent on the genetic component, determined by the variation that is inherited.

This implies that V(e)= initial variance which was there in the parents ( i.e Variance of inbred line 1 = 311 and Variance of inbred line 2 = 333 )

V(e) = (311 + 333) = 644

Genetic Variance simply refer to the variance that occurs or preferrably , that is observed after inbreeding (i.e Variance of F1 = 316 and Variance of F2 = 1153)

V(g) = (316 + 1153) = 1469

Now, back to phenotypic variance = V(e) + V(g)

substituting the parameters we have; 1469 + 644 = 2113

Broad-sense heritability can be calculated as the ratio of total genetic variance to total phenotypic variance.

= V(g)/ V(p)

= 1469/ 2113

= 0.695

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3 years ago