Unit 1.1

Question 1

Strands of DNA are made up of repeating units called ________

Answer 1

Nucleotides

Question 2

Nucleotides are made up of

Answer 2

Deoxyribose sugar
Phosphate
Base

Question 3

Name the four bases

Answer 3

Adenine
Thymine
Guanine
Cytosine

Question 4

What links the phosphate and sugar and isn’t easily broken and joins nucleotides into a permanent strand

Answer 4

Strong chemical bonds

Question 5

What ends are the 5’ end and 3’ end

Answer 5

5’ end at the phosphate and 3’ end at the sugar

Antiparalell way- is the opposite 3-5

Question 6

Bases are held together by?

Answer 6

Weak hydrogen bonds

Question 7

Prokaryotes- what and where?

Answer 7

Organisms that don’t contain a membrane bound
No nucleus
found in cytoplasm

Question 8

Eukaryotes - what and where?

Answer 8

Organisms that have a memebrane bound and a nucleus that store their genetic info

Question 9

Organisation of prokaryotes

Answer 9

Single circular and small rings of plasmids

Question 10

Organisation of DNA in eukaryotes?

Answer 10

Linear and circular (in mitochondria and chloroplasts)

Question 11

Plasmids are found in only one eukaryote

Answer 11

Yeast

Question 12

DNA is tightly wrapped around

Answer 12

Histones