What is the difference between a leading and lagging strand?

1 answer:

5 0

The leading strand is oriented in a way for nucleotides to be added in the 5' to 3' direction. The lagging strands add nucleotides in the opposite direction of 3' to 5' away from the replication fork. Because the lagging strand is being formed backwards, it is made in fragments called okazaki fragments and not a continuous piece like the leading strand. DNA ligase is needed to connect the fragments together and it is not needed in the leading strand. Another difference is the leading strand only needs an RNA primer at the beginning of the strand , but the lagging strand uses RNA primers for each separate fragment.

You might be interested in

Ally thinks she is pregnant because she has not had her period in two months. the hormone responsible for her lack of menstruati

Delvig [45]

The menstrual cycle is regulated by two hormones secreted from the pituitarygland, follicle stimulating hormone (FSH<span>) and luteinizing hormone (LH).</span>

8 0

3 years ago

Many species of bacteria live in your mouth and throat. These bacteria come from several different groups within domain Bacteria

Inessa [10]

C I think maybe we

3 0

2 years ago

Read 2 more answers

GIVING 20 POINTS! Which is a goal of the Human Genome Project? to identify the 3 billion genes that comprise the human genome?

GrogVix [38]

The main goal of the human genome project is to identify the 3 billion genes that comprise the human genome. Hence the correct answer is option A.

8 0

3 years ago

Read 2 more answers

What interactions are occurring that allow the water to move against gravity in capillary action? Select three options.

solniwko [45]

Answer:

Adhesion and surface tension

Explanation:

Capillary action is the tendency of a liquid to rise or fall in a narrow tube. Two main terms are required to explain capillary action; adhesion and cohesion.

Cohesion is the force of attraction between molecules of the same kind while adhesion is the force of attraction between molecules of different kinds.

Forces of adhesion causes water to move up in a capillary tube. The water is held as it rises by surface tension forces acting on the circumference of the meniscus. The water keeps rising in the tube until the weight of the water drawn up in the tube balances the surface tension acting at the top column of the water.

3 0

2 years ago

Which term refers to the diffusion of water through a membrane?

Nataliya [291]

A. Osmosis. Hope this helps :)

8 0

3 years ago

Read 2 more answers