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Biology Chapter on DNA Functions

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Questions and Answers

What is the primary function of the DNA molecule?

To produce energy for the cell
To transport nutrients within the cell
To store and transmit genetic information (correct)
To synthesize proteins directly

What binds the complementary nucleotide pairs in DNA?

Hydrogen bonds (correct)
Disulfide bonds
Ionic bonds
Covalent bonds

What are the regions of DNA that encode proteins called?

Nucleotides
Genome
Genes (correct)
Chromosomes

How is genetic information described in the context of DNA?

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What structures hold the DNA molecules that carry genes?

<p>Chromosomes (A)</p> Signup and view all the answers

Flashcards

DNA

A molecule made of two strands of nucleotides that carry genetic information. It acts as a blueprint for life.

Nucleotides

The building blocks of DNA, each consisting of a sugar, a phosphate group, and one of four nitrogenous bases: adenine (A), guanine (G), cytosine (C), or thymine (T).

Base Pairs (bp)

The specific pairings of nucleotides in DNA: adenine (A) always pairs with thymine (T), and guanine (G) always pairs with cytosine (C).

Genome

The complete set of DNA within a cell or organism. It contains all the genetic information needed for an organism's development and function.

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Genes

The segments of DNA that hold the instructions for building specific proteins. These proteins are essential for various cellular functions.