Okay, everyone. Which of the following statements describes a difference between mitosis and meiosis 1 in a diploid organism? Okay. So let's have a look. Answer choice a says, sister chromatids separate in mitosis, while homologous pairs of chromosomes separate in meiosis 1. I don't see anything wrong with this statement. This makes total sense. This is a great answer. Let's look at the other ones. Answer choice b says, sister chromatids separate in mitosis and in meiosis 1. This is not true. Remember that sister chromatids separate in mitosis and meiosis number 2. So this is not correct. Answer choice c says, DNA replication takes place prior to mitosis, but not before meiosis 1. Absolutely not. We know that DNA replication is going to occur before both types of cellular division, mitosis and meiosis. Answer choice d says only meiosis 1 results in daughter cells that contain identical genetic information. That's not true. That's only going to be mitosis. So the correct answer here is answer choice a. A major difference between mitosis and meiosis 1 is that sister chromatids separate in mitosis, while homologous pairs of chromosomes separate in meiosis 1. Okay, everyone. Let's move on to our next video.
Mitosis & Meiosis Review - Online Tutor, Practice Problems & Exam Prep
Mitosis & Meiosis Review Example 1
Video transcript
During which of the following processes do sister chromatids separate from each other?
a) During meiosis I only.
b) During meiosis II only.
c) During both mitosis and meiosis I.
d) During both mitosis and meiosis II.
Which of the following statements describes a difference between meiosis II and mitosis in a diploid organism?
a) Sister chromatids align along the metaphase plate in mitosis while homologous chromosomes align in meiosis II.
b) Sister chromatids separate in mitosis and homologous chromosomes separate in meiosis II.
c) Meiosis II occurs in a haploid cell, while mitosis occurs in a diploid cell.
d) Crossing over of chromosomes takes place in meiosis II and does not take place in mitosis.
Which of the following processes occurs in meiosis but not in mitosis?
a) Chromosome replication during interphase.
b) Synapsis of chromosomes during prophase.
c) Alignment of chromosomes at the center of the cell.
d) Condensation of chromosomes during prophase.
e) None of the above.
What does it mean when we say that mitosis and meiosis II are forms of 'equational division' while meiosis I is a form of 'reductional division'?
a) Daughter cells of mitosis and meiosis II are both diploid while the daughter cells of meiosis I are haploid.
b) The number of chromosomes in daughter cells of meiosis I is half the number of chromosomes of the parent cell.
c) The number of chromosomes in daughter cells of mitosis and meiosis II is equal to the number of chromosomes in the parent cells.
d) A and B.
e) B and C.
f) All of the above.
