Which of the Following Is Not True About the Structure

question 57

Multiple Choice

Which of the following is not true about the structure of DNA?

• A)The sides of the ladder structure are made up of sugar and phosphate.
• B)The bases form the "rungs" of the ladder structure.
• C)The two strands are considered parallel.
• D)The ladder structure is twisted into a double helix.
• E)A always pairs with T and G always pairs with C.

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Definitions:

Ovulation

The release of an egg from one of the ovaries, a critical phase in the menstrual cycle involved in reproduction.

Menstruation

The monthly shedding of the lining of the uterus (endometrium) that results in bleeding from the vagina, part of the female reproductive cycle.

Estrogen

A group of steroid hormones that promote the development and maintenance of female characteristics of the body.

Progesterone

A steroid hormone released by the ovaries, placenta, and adrenal glands that plays a key role in the menstrual cycle, pregnancy, and embryogenesis.