Unattached Earlobes (EE or Ee)are Dominant Over Attached Earlobes (Ee)

question 74

Multiple Choice

Unattached earlobes (EE or Ee) are dominant over attached earlobes (ee) .A couple both have unattached earlobes.Both notice that one of their parents on both sides have attached earlobes (ee) .Therefore,they correctly assume that they are carriers for attached earlobes (Ee) .If the couple proceeds to have four children,then

• A) they can be certain that three will be heterozygous and one homozygous recessive.
• B) if the first three are heterozygous, the fourth must be homozygous recessive.
• C) the children must repeat the grandparents' genotype (Ee).
• D) all children must have unattached earlobes since both parents possess the dominant gene for it.
• E) two heterozygous, one homozygous dominant, and one homozygous recessive is a likely outcome, but all heterozygous, or two, three or all four homozygous is also possible.

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Definitions:

Total Cost

The complete amount of expenses incurred by a business or individual in the production or acquisition of a good or service.

Manufacture Units

The individual items or goods produced by a manufacturing process.

High-low Method

A way of attempting to understand cost behavior by analyzing the difference in cost between the highest and lowest volume levels.

High-low Method

A technique used in managerial accounting to estimate variable and fixed cost components of a cost by analyzing the highest and lowest activity levels.