/*! 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 26 In mitosis, what chromatid combi... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 2: Problem 26

In mitosis, what chromatid combination(s) will be present during metaphase? What combination(s) will be present at each pole at the completion of anaphase?

Short Answer

Expert verified
Answer: During metaphase, the chromatid combination present is the sister chromatids combination. Upon completion of anaphase, the combination present at each pole is a complete, identical set of chromatids (now chromosomes).

Step by step solution

01

Understanding Mitosis

Mitosis is a process of cell division where a cell divides into two identical daughter cells containing the same number of chromosomes as the parent cell, ensuring proper chromosomal distribution among the cells. The process consists of several stages: prophase, prometaphase, metaphase, anaphase, and telophase.
02

Metaphase

During metaphase, the chromosomes align themselves at the equator, or the middle, of the cell. Each chromosome is made up of two sister chromatids which are attached at the centromere. The spindle fibers are connected to the centromeres, preparing the chromosomes for division.
03

Chromatid Combinations During Metaphase

In metaphase, each chromosome is present with its two sister chromatids. The chromosomes are aligned at the equator of the cell, and there is one chromatid combination present (sister chromatids combination).
04

Anaphase

Anaphase is the stage of mitosis where the sister chromatids are separated and pulled towards the opposite poles of the cell. The spindle fibers shorten, pulling the chromatids apart and ensuring equal distribution of genetic material in the two daughter cells.
05

Chromatid Combinations at the Completion of Anaphase

At the completion of anaphase, the separated chromatids have arrived at the opposite poles of the cell. Each pole will have a complete set of chromatids, which are now known as chromosomes. The chromatid combinations at each pole are identical to the combinations initially present in the parent cell. In conclusion, the chromatid combination present during metaphase is the sister chromatids combination, while the combination present at each pole upon completion of anaphase is the complete, identical set of chromatids (now chromosomes). These identical combinations ensure the proper distribution of genetic material to the daughter cells following mitosis.

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!

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

21. Such individuals therefore ha鈥� # Trisomy 21 or Down syndrome occurs when there is a normal diploid chromosomal complement of 46 chromosomes plus one (extra) chromosome #21. Such individuals therefore have 47 chromosomes. Assume that a mating occurs between a female with Down syndrome and a normal 46 -chromosome male. What proportion of the offspring would be expected to have Down syndrome? Justify your answer.

An interesting procedure has been applied for assessing the chromosomal balance of potential secondary oocytes for use in human in vitro fertilization. Using fluorescence in situ hybridization (FISH), Kuliev and Verlinsky (2004) were able to identify individual chromosomes in first polar bodies and thereby infer the chromosomal makeup of "sister" oocytes. Assume that when examining a first polar body you saw that it had one copy (dyad) of each chromosome but two dyads of chromosome \(21 .\) What would you expect to be the chromosomal 21 complement in the secondary oocyte? What consequences are likely in the resulting zygote, if the secondary oocyte was fertilized?

During the first meiotic prophase, (a) when does crossing over occur; (b) when does synapsis occur; (c) during which stage are the chromosomes least condensed; and (d) when are chiasmata first visible?

How do the stages of mitosis and meiosis occur in a specific order and never alternate?

During oogenesis in an animal species with a haploid number of \(6,\) one dyad undergoes nondisjunction during meiosis II. Following the second meiotic division, this dyad ends up intact in the ovum. How many chromosomes are present in (a) the mature ovum and (b) the second polar body? (c) Following fertilization by a normal sperm, what chromosome condition is created?
See all solutions

Recommended explanations on Biology Textbooks

Heredity

Read Explanation

Biology Experiments

Read Explanation

Bioenergetics

Read Explanation

Biological Structures

Read Explanation

Biological Processes

Read Explanation

Chemistry of Life

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.