DNA and proteins

Question 0

What is meant by the term genetic information?

Answer 0

Codes that allow proteins to be produced.

Question 1

State the role of DNA in cells

Answer 1

Carries genetic information

Question 2

What is the shape of a DNA molecule?

Answer 2

Double stranded helix

Question 3

What are the 4 letters which make up genetic codes in a DNA molecule

Answer 3

A, T, G, C

Question 4

Give the complementary bases

Answer 4

A T & G C

Question 5

What is the term for a section of DNA with a specific sequence of bases that codes for the production of a specific protein?

Answer 5

Gene

Question 6

What molecule carries a complementary copy of the bases to the nucleus?

Answer 6

Messenger RNA

Question 7

Where in a cell are amino acids assembled to produce protein molecules?

Answer 7

Ribosomes

Question 8

State what a Genetic code is

Answer 8

Formed by the sequences of the bases in DNA that determines characteristics

Question 9

How many strands is a normal DNA molecule composed of?

Answer 9

2

Question 10

20% of the bases in a DNA molecule are G. What % of the bases are A?

Answer 10

30%

Question 11

Which substance can be present in the nucleus and at the ribosomes of cells?

Answer 11

mRNA

Question 12

Between which structures in animal, fungal and plant cells is mRNA transferred?

Answer 12

Nucleus to ribosomes

Question 13

Where In a cell are proteins assembled?

Answer 13

Ribosomes

Question 14

Give the order of protein synthesis

1. Bonds form between amino acids
2. m-RNA attaches to a ribosome
3. m-RNA transcribes DNA in the nucleus
4. t-RNAs bring amino acids to the ribosome

Answer 14

4
2
1
3

Question 15

What are all proteins composed of?

Answer 15

amino acids

Question 16

Which compound is linked by chemical bond to form DNA

Answer 16

Nucleotides

Question 17

Is it the ORDER or NUMBER that decides personally

Answer 17

ORDER