/*! 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 2 A duplicated chromosome has chro... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 11: Problem 2

A duplicated chromosome has chromatid(s). a. one c. three b. two d. four

Short Answer

Expert verified
A duplicated chromosome has two chromatids.

Step by step solution

01

Understanding a Chromatid

A chromatid is one half of a duplicated chromosome. During cell division, specifically in the mitotic and meiotic processes, chromosomes replicate themselves to ensure that each daughter cell receives the correct amount of genetic material.
02

Recognizing a Duplicated Chromosome

In the context of cell division, when a chromosome duplicates itself, it consists of two identical chromatids, commonly referred to as 'sister chromatids.' These sister chromatids remain joined together at a region called the centromere.
03

Answer Selection

Based on the understanding that a duplicated chromosome consists of two identical chromatids joined at the centromere, select the answer choice that reflects this number of chromatids in a duplicated chromosome.

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.

Duplicated Chromosome
A duplicated chromosome is key in the process of cell division. Let's break it down a little.
When we say a chromosome has duplicated, this means it has created an exact copy of itself. This copy is crucial to ensure that genetic information is consistently transferred from parent cells to daughter cells.
During the duplication process, DNA is tightly packed together to form this structure known as a chromosome. When you visualize a duplicated chromosome, imagine the classic 'X' shape; however, each half of this 'X' is known as a chromatid.
  • This duplicated state ensures that when cells divide, they'll equally distribute an accurate set of genetic instructions.
  • The process creates a pair of chromatids 鈥� identical twins, in a sense.
Sister Chromatids
Sister chromatids are the result of a chromosome duplicating itself. Picture them as the two arms of the 'X' shape you see during cell division.
Each chromatid is identical to the other because they originate from the same chromosome. This paired structure is crucial as it allows the cell to carry out efficient and accurate division.
These chromatids stay closely connected at a specific spot known as the centromere.
  • This connection ensures that when the time comes to divide, each new cell will receive one chromatid from the pair.
  • This ensures the genetic material remains consistent in each daughter cell.
As such, sister chromatids play a vital role in maintaining biological consistency across generations of cell replication.
Cell Division
Cell division is foundational for growth, development, and maintenance in living organisms. Without it, life as we know it wouldn't be possible.
Cell division happens in stages, often described through processes like mitosis and meiosis.
These processes allow for cells to not only replicate but also to diversify in specific circumstances.
  • In mitosis, the goal is to create two identical daughter cells, ensuring each cell has a complete set of chromosomes.
  • In meiosis, which is key in sexual reproduction, the aim is to create gametes (sperm and eggs) with half the number of chromosomes, allowing for genetic diversity upon fertilization.
Regardless of the type of cell division, a duplicated chromosome's sister chromatids will eventually separate to ensure each resulting cell has the correct genetic material. This intricate process is a marvel of nature, highlighting the precision with which life operates.

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

Interphase is the part of the cell cycle when a. a cell ceases to function b. a cell forms its spindle apparatus c. a cell grows and duplicates its DNA d. mitosis proceeds

Mitosis and cytoplasmic division function in a. asexual reproduction of single-celled eukaryotes b. growth and tissue repair in multicelled species c. gamete formation in bacteria and archaea d. sexual reproduction in plants and animals e. both a and b

In intervals of interphase, G stands for a. gap b. growth c. Gey d. gene

After mitosis, the chromosome number of a descendant cell is a. the same as c. rearranged compared to b. one-half of d. doubled compared to

Homologous chromosomes a. carry the same genes \(c\). are the same length b. are the same shape d. all of the above
See all solutions

Recommended explanations on Biology Textbooks

Ecosystems

Read Explanation

Ecology

Read Explanation

Cells

Read Explanation

Reproduction

Read Explanation

Heredity

Read Explanation

Biology Experiments

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.