100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
RN Pre-Entrance Exam ,Biology practice questions , challenging multiple-choice questions for each of these three categories: Cell Division, Ecology, and Evolution. Each question includes a correct answer and an explanation. $16.49   Add to cart

Exam (elaborations)

RN Pre-Entrance Exam ,Biology practice questions , challenging multiple-choice questions for each of these three categories: Cell Division, Ecology, and Evolution. Each question includes a correct answer and an explanation.

 5 views  0 purchase
  • Course
  • RN- Nursing
  • Institution
  • RN- Nursing

RN Pre-Entrance Exam ,Biology practice questions , challenging multiple-choice questions for each of these three categories: Cell Division, Ecology, and Evolution. Each question includes a correct answer and an explanation. PAX-RN, Review guide for pre-entrance exam, PAX-RN secrets study guide, Mc...

[Show more]

Preview 2 out of 14  pages

  • September 16, 2024
  • 14
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • RN- Nursing
  • RN- Nursing
avatar-seller
Estonloyford
RN Pre-Entrance Exam ,Biology practice questions , challenging multiple-choice
questions for each of these three categories: Cell Division, Ecology, and Evolution. Each
question includes a correct answer and an explanation.



Cell Division

1. Which phase of mitosis is characterized by the alignment of chromosomes along
the equatorial plane of the cell?
o A) Prophase
o B) Metaphase
o C) Anaphase
o D) Telophase

Answer: B) Metaphase
Explanation: During metaphase, chromosomes align at the cell's equatorial plane,
known as the metaphase plate, in preparation for separation.

2. In which phase of meiosis does crossing over occur?
o A) Prophase I
o B) Metaphase I
o C) Anaphase I
o D) Telophase II

Answer: A) Prophase I
Explanation: Crossing over, or recombination, occurs during Prophase I of meiosis,
allowing for genetic diversity.

3. Which of the following best describes nondisjunction?
o A) Failure of chromosomes to replicate before cell division
o B) Failure of chromosomes to separate properly during cell division
o C) Excessive genetic material due to DNA replication errors
o D) Unequal distribution of organelles in daughter cells

Answer: B) Failure of chromosomes to separate properly during cell division
Explanation: Nondisjunction occurs when chromosomes or chromatids fail to
separate correctly during meiosis or mitosis, leading to aneuploidy.

4. Which checkpoint of the cell cycle ensures that DNA replication is complete and
that no damage is present before cell division proceeds?
o A) G1 Checkpoint
o B) G2 Checkpoint
o C) Metaphase Checkpoint
o D) Anaphase Checkpoint

Answer: B) G2 Checkpoint
Explanation: The G2 checkpoint verifies that DNA replication is complete and that
the cell is ready for mitosis.

, 5. How many unique daughter cells are produced at the end of meiosis?
o A) Two
o B) Four
o C) Eight
o D) Sixteen

Answer: B) Four
Explanation: Meiosis produces four genetically unique daughter cells, each with half
the number of chromosomes as the original cell.

6. Which of the following is a key difference between mitosis and meiosis?
o A) Mitosis produces diploid cells, whereas meiosis produces haploid cells.
o B) Meiosis occurs in somatic cells, while mitosis occurs in germ cells.
o C) Mitosis involves two rounds of division, while meiosis involves one.
o D) Meiosis produces identical daughter cells, whereas mitosis produces
genetically diverse cells.

Answer: A) Mitosis produces diploid cells, whereas meiosis produces haploid cells.
Explanation: Mitosis results in two diploid daughter cells, while meiosis results in
four haploid cells, essential for sexual reproduction.

7. During which stage of mitosis do sister chromatids separate and move toward
opposite poles of the cell?
o A) Prophase
o B) Metaphase
o C) Anaphase
o D) Telophase

Answer: C) Anaphase
Explanation: Anaphase is when sister chromatids separate and are pulled toward
opposite poles by the spindle fibers.

8. What is the primary role of the spindle apparatus during cell division?
o A) DNA replication
o B) Chromosome alignment and separation
o C) Cytokinesis
o D) RNA transcription

Answer: B) Chromosome alignment and separation
Explanation: The spindle apparatus helps align chromosomes at the metaphase plate
and ensures their correct separation during cell division.

9. What structure forms during prophase I of meiosis and is crucial for genetic
recombination?
o A) Centromere
o B) Tetrad
o C) Centriole
o D) Spindle Fiber

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Estonloyford. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $16.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

83100 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$16.49
  • (0)
  Add to cart