Topic 5- DNA and Protein Synthesis Flashcards

You may prefer our related Brainscape-certified flashcards:
0
Q

What is a gene?

A

A section of DNA that carries the information needed to make a particular protein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

What are chromosomes made of?

A

Long coiled molecules of DNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where is all of the genetic information held?

A

In chromosomes found within the nucleus of almost all boy cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are bases?

A

Chemicals that are contained in DNA molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What shape is a DNA molecule?

A

A double helix

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How are the sides of the double helix held together?

A

By bases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How do the bases join up?

A

In complementary base pairs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the 4 different types of bases in DNA?

A

Adenine
Thymine
Cytosine
Guanine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the base indicated by G?

A

Guanine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the base indicated by T?

A

Thymine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the base indicated by C?

A

Cytosine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the base indicated by A?

A

Adenine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the complementary base pairs?

A

A only joins with T

C only joins with G

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

DNA is able to leave the nucleus of the cell

True or False?

A

False

The DNA never leaves the nucleus of the cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Where are proteins made?

A

In the cytoplasm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How is DNA copied to make a protein?

A

The DNA is copied onto a messenger molecule which leaves the nucleus and is then used to make protein

16
Q

What replaces thymine in mRNA?

A

Uracil

17
Q

How many strands does mRNA have?

A

A single strand

18
Q

Where does the mRNA go after copying the gene?

A

The cytoplasm

19
Q

What happens to the mRNA in the cytoplasm?

A

It attaches onto a ribosome

20
Q

Where is the site of protein synthesis?

A

Ribosomes

21
Q

What are proteins composed of?

A

Smaller molecules known as amino acids

22
Q

Where are proteins found?

A

In every living organism

23
Q

How many amino acids can be in a protein?

A

There can be 100s making up a chain

24
Q

What does ribosomes need to make proteins?

A

The mRNA code

25
Q

How do the ribosomes use the mRNA?

A

The ribosome moves along the mRNA and uses the code to determine which amino acids join together

26
Q

What ultimately codes for the proteins?

A

DNA

27
Q

What does the sequence of amino acids determine?

A

The sequence and structure of the protein chain eventually made