Lesson 1: Genetic Code

Question 1

Which bases are found in a strand of DNA?

Revolt · Accepted Answer

adenine, thymine, guanine, cytosine

Question 2

If the same base pairs are used to code for all organisms, why is there so much variation among organisms?

Revolt · Accepted Answer

The order of the codons differs between organisms.

Question 3

Who is credited with creating the first accurate model of DNA?

Revolt · Accepted Answer

James Watson and Francis Crick

Question 4

Which best describes the outcome of DNA replication?

Revolt · Accepted Answer

The new DNA molecule is identical to the original DNA.

Question 5

Who first identified DNA?

Revolt · Accepted Answer

Friedrich Miescher

Question 6

What basic unit of heredity is found on segments of DNA and are passed on from parent to offspring?

Revolt · Accepted Answer

gene

Question 7

Which are segments of DNA that code for specific traits?

Revolt · Accepted Answer

genes

Question 8

Which of the following incorrectly matches the term with its location?

Revolt · Accepted Answer

Genes are located in a nucleotide.

Question 9

In 1953, who developed the model that is shown below?

Revolt · Accepted Answer

James Watson and Francis Crick

Question 10

In which structure is all the genetic information of an organism found?

Revolt · Accepted Answer

DNA

Lesson 1: Genetic Code Answers