1.5.7 Semi-Conservative Replication

Question 1

Before a (parent) cell divides, it needs to

Answer 1

copy the DNA contained within it

Question 2

Before a (parent) cell divides, it needs to copy the DNA contained within it, this is so that

Answer 2

the two new (daughter) cells produced will both receive the full copies of the parental DNA

Question 3

he DNA is copied via a process known as

Answer 3

semi-conservative replication (semi = half)

Question 4

The process is called so because in each new DNA molecule produced

Answer 4

one of the polynucleotide DNA strands (half of the new DNA molecule) is from the original DNA molecule being copied

Question 5

The other polynucleotide DNA strand (the other half of the new DNA molecule) has to be

Answer 5

newly created by the cell

Question 6

Therefore, the new DNA molecule has conserved

Answer 6

half of the original DNA and then used this to create a new strand

Question 7

The importance of retaining one original DNA strand is it

Answer 7

ensures there is genetic continuity between generations of cells

Question 8

It ensures that the new cells produced during cell division

Answer 8

inherit all their genes from their parent cells

Question 9

Genetic continuity is important because

Answer 9

cells in our body are replaced regularly and therefore we need the new cells to be able to do the same role as the old ones

Question 10

Replication of DNA and cell division also occurs during

Answer 10

growth