Which of the following is correct about sexual...

Which of the following is correct about sexual reproduction? It requires mitosis to reduce the complement of chromosomes in half at some point along the way. It requires internal fertilization if in dry conditions because the cells involved must be kept in a moist environment at all times. It produces offspring that are genetically identical to each other. It only occurs in multicellular organisms.

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Transcript

00:01 Here, this question is asking about sexual reproduction.

00:09 So let's talk for a moment about some of the parts of sexual reproduction.

00:18 One is, cells must undergo myosis to produce gametes.

00:35 And these gametes have half the genetic material.

00:39 In other words, they are haploid.

00:52 Sexual reproduction results in greater diversity because two different gametes.

01:05 Needs combine at fertilization, thus giving us diversity in the offspring.

01:18 So it's getting some of its traits from the mother and some from the father.

01:28 All right, so let's, using this, let's go ahead and look at our answer options here, which is correct.

01:34 Well, the first one says it requires mitosis to reduce the complement of chromosomes in half at some point along the way.

01:42 While that is almost correct, except it says mitosis.

01:46 And mitosis does not reduce the genetic material in half.

01:53 It needs to be meiosis, not mitosis.

01:56 So the first one's incorrect.

01:58 The second one, it requires internal fertilization in dry conditions.

02:04 So if you're on land in dry conditions, it's going to need internal fertilization.

02:10 Because the cells involved, those would be the gametes, must be kept in a moist environment at all times...

Question

Please give Ace some feedback