/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 3 At which stage of meiosis are si... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 11: Problem 3

At which stage of meiosis are sister chromatids separated from each other? a. anaphase I b. anaphase II c. prophase I d. prophase II

Short Answer

Expert verified
b. anaphase II

Step by step solution

01

Understand the Question

The question asks at which stage of meiosis sister chromatids are separated. Meiosis consists of two sequential stages: meiosis I and meiosis II, and it is important to understand different phases within these stages.
02

Review Meiosis I

Meiosis I includes phases: prophase I, metaphase I, anaphase I, and telophase I. In anaphase I, homologous chromosomes are separated, not sister chromatids.
03

Review Meiosis II

Meiosis II includes phases: prophase II, metaphase II, anaphase II, and telophase II. Anaphase II is the stage where sister chromatids are finally separated by the spindle fibers to opposite poles.
04

Identify the Correct Phase

By analyzing the details, it is clear that sister chromatids are separated during anaphase II of meiosis.
05

Choose the Correct Option

Based on the information reviewed, identify that the correct option from the provided choices is b. anaphase II.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

anaphase II
In meiosis, anaphase II plays a crucial role. It is a stage in the second division of meiosis. During anaphase II, the spindle fibers pull the sister chromatids apart. The chromatids move towards opposite poles of the cell. This separation is essential for genetic diversity. Each resulting cell ends up with a unique set of chromosomes. Anaphase II is particularly important because it ensures that each of the four daughter cells receives one copy of each chromosome.
sister chromatids
Sister chromatids are identical copies of a single chromosome. They are formed during DNA replication in the S phase of the cell cycle. Each chromosome consists of two sister chromatids, joined together by a centromere. In meiosis, sister chromatids are crucial for genetic variation. They are identical initially, but crossovers during prophase I can lead to genetic differences. These changes are vital for evolution and adaptability in organisms. The separation of sister chromatids during anaphase II ensures that each daughter cell gets a complete set of genetic information.
cell division stages
Meiosis consists of two main stages: meiosis I and meiosis II. Each of these stages has four phases.

In **meiosis I**, we have:
  • Prophase I: Chromosomes condense, homologous chromosomes pair up, and crossing over occurs.
  • Metaphase I: Homologous chromosomes line up at the cell's equator.
  • Anaphase I: Homologous chromosomes separate to opposite ends of the cell.
  • Telophase I: The cell divides into two new cells, each with half the original chromosome number.

In **meiosis II**, we have:
  • Prophase II: Chromosomes condense and new spindle fibers form.
  • Metaphase II: Chromosomes line up at the cell's equator.
  • Anaphase II: Sister chromatids are pulled apart to opposite ends of the cell.
  • Telophase II: The cell divides again, resulting in four genetically unique daughter cells.
Understanding these stages help us grasp how genetic variation is achieved in gametes. Each phase plays a distinct and vital role in proper cell division and genetic diversity.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Spores are structures produced by some plants and all fungi. Which is true about them? a. Spores are haploid reproductive cells that can produce haploid organisms through mitosis. b. Spores are haploid precursors to gametes that give rise to gametes when environmental conditions are favorable. c. Spores are haploid reproductive cells that can produce diploid cells without fertilization. d. Spores are haploid cells formed only during asexual reproduction and so are not formed by meiosis.

What phase(s) of mitotic interphase is missing from meiotic interkinesis? a. \(\mathrm{G}_{0}\) phase b. \(\mathrm{G}_{1}\) phase c. \(\mathrm{G}_{2}\) phase d. \(\mathrm{S}\)-phase

Reproductive cells in most species are different from the cells that make up the rest of the organism. What are the 鈥渂ody鈥� cells called and how are they different from the reproductive cells? a. Body cells are called gametes and they have half the number of chromosomes found in reproductive cells. b. Body cells are called somatic cells and have the same number of chromosomes as reproductive cells. c. Body cells are called somatic cells and have double the number of chromosomes found in reproductive cells. d. Body cells are called gametes and have double the number of chromosomes found in reproductive cells.

What is a likely evolutionary advantage of sexual reproduction over asexual reproduction? a. Sexual reproduction involves fewer steps. b. Sexual reproduction results in variation in the offspring. c. Sexual reproduction is more metabolically efficient. d. Sexual reproduction uses up fewer resources in a given environment.

There are three sources of genetic variation in sexual reproduction. Which is not considered random? a. All are random. b. Crossing over c. Egg and sperm fertilization d. Tetrad alignment on the meiotic spindle.
See all solutions

Recommended explanations on Biology Textbooks

Substance Exchange

Read Explanation

Reproduction

Read Explanation

Biology Experiments

Read Explanation

Microbiology

Read Explanation

Organ Systems

Read Explanation

Biological Molecules

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.