Of the Three Key Building Blocks of DNA,which Type(s)of Building

question 14

Multiple Choice

Of the three key building blocks of DNA,which type(s) of building block is/are negatively charged and oriented on the outside of the double helical structure?

• A)phosphate
• B)deoxyribose
• C)nitrogenous bases
• D)both phosphate and nitrogenous bases
• E)All of the answer options are correct.

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Definitions:

Graafian Follicle

A mature ovarian follicle that releases an egg during ovulation, named after the Dutch anatomist Regnier de Graaf.

Oocyte

A female germ cell involved in reproduction, also known as an egg cell, which can potentially develop into an embryo when fertilized.

Endometrium

A mucous membrane that coats the inside of the uterus, increasing in thickness during the menstrual cycle, readying itself for the potential embedding of an embryo.

Alveoli

Tiny air sacs within the lungs where the exchange of oxygen and carbon dioxide takes place, essential for breathing.