Astigmatism, a Condition in Which a Defect in the Curvature

question 3

True/False

Astigmatism, a condition in which a defect in the curvature of the cornea or lens produces areas of blurred vision, is an example of a recessive trait.

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Definitions:

Meiosis I

The first division in meiosis where a single cell divides into two cells containing half the original chromosome number, leading to genetic diversity.

Fertilization

The union of male and female gametes (sperm and egg) to form a zygote, initiating the development of a new organism.

Blastodisc

A flattened area of a fertilized egg where cells proliferate during early embryonic development in birds and reptiles.

Holoblastic Cleavage

Holoblastic cleavage refers to a type of embryonic development where the entire egg is evenly divided during cell division, characteristic of many animals including mammals.