Chapter 3 Lesson 4 Flashcards Preview

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Flashcards in Chapter 3 Lesson 4 Deck (11):
1

what do proteins do

they help to determine the size,shape,color and many other traits of an organism

2

what are chromosomes mostly composed of

DNA

3

what are the four nitrogen bases that make up a DNA molecule

adenine A
thymine T
guanine G
cytosine C

4

what is a section of a DNA molecule that contains the information to code for one specific protein

a gene

5

what is the production of proteins called

protein synthesis

6

where does protein synthesis take place

on the ribosomes in the cytoplasm of the cell

7

where are chromosomes found in a cell

inside the nucleus

8

what is messenger RNA

it is a ribonucleic acid that copies the coded message from the DNA in the nucleus and carries the message to the ribosome in the cytoplasm

9

what is transfer RNA

it is a ribonucleic acid that carries amino acids to the ribosome and adds them to the growing protein

10

what is a mutation

a change in a gene or chromosome

11

what is the main function of genes

to control the production of proteins in an organism's cells