/*! 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 23 Discuss the similarities and dif... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 26: Problem 23

Discuss the similarities and differences between the bithorax and Antennapedia complexes in Drosophila and the Hox gene complexes in mice.

Short Answer

Expert verified
The bithorax and Antennapedia complexes in Drosophila and the Hox gene complexes in mice are clusters of homeotic genes that determine patterns of segment development. They share similarities in their conservation over evolution and have few differences, mainly in the number of clusters and functional overlap in the Hox genes in mice.

Step by step solution

01

Introduction to Gene Complexes

First, understand what the bithorax and Antennapedia complexes in Drosophila and the Hox gene complexes in mice are. The bithorax and Antennapedia complexes are groups of genes found in fruit flies that determine the patterns of body segment development. The Hox gene complexes in mice are similar to these as they're genes that determine the patterns of body segment development in mammals.
02

Detailed Comparison

Next, compare the two complexes in detail. Some similarities include that they're both clusters of homeotic genes, they both determine the patterns of segment development, and they're studied extensively in genetics due to the effects mutations have on phenotypic traits. Differences, while few, are significant - the main difference being that Drosophila has two clusters (bithorax and Antennapedia) while mammals have four Hox clusters. Also, Hox genes in mice demonstrate a functional overlap that isn't observed in Drosophila.
03

Conclusion

In conclusion, despite being from different species, these gene complexes share more similarities than differences due to the conservation of these genes over evolution. The main difference lies in the number of clusters, with mammals having more than Drosophila, and the functional overlap observed in Hox genes in mice.

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

If you observed fruit flies with the following developmental abnormalities, would you guess that a mutation has occurred in a segmentation gene or a homeotic gene? Explain your guess. A. Three abdominal segments were missing. B. One abdominal segment had legs. C. A fly with the correct number of segments had two additional thoracic segments and two fewer abdominal segments.

What is the difference between a maternal-effect gene and a zygotic gene? Of the following genes that play a role in \(D r o s o p h-\) ila development, which are maternal-effect genes and which are zygotic? Explain your answer. A. nanos B. Antp C. bicoid D. \(l a b\)

Discuss the morphological differences between the parasegments and segments of Drosophila. Discuss the evidence, providing specific examples, that suggests the parasegments of the embryo are the subdivisions for the organization of gene expression.

Which of the following statement(s) is/are true with regard to positional information in Drosophila? A. Morphogens are a type of molecule that conveys positional information. B. Morphogenetic gradients are established only in the oocyte, prior to fertilization. C. Cell adhesion molecules also provide a way for a cell to obtain positional information.

Discuss the morphological differences between animal and plant development. How are the developmental processes different at the cellular level? How are they similar at the genetic level?
See all solutions

Recommended explanations on Biology Textbooks

Substance Exchange

Read Explanation

Biological Processes

Read Explanation

Bioenergetics

Read Explanation

Genetic Information

Read Explanation

Microbiology

Read Explanation

Astrobiological Science

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.