EBK HUMAN ANATOMY
EBK HUMAN ANATOMY
8th Edition
ISBN: 9780100799554
Author: Martini
Publisher: YUZU
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Chapter 28, Problem 4RFT
Summary Introduction

To review:

Match the term expulsion stage with the most closely related description given below:

Begins with the onset of the true labor

Begins as the dilation of the cervix is complete

Birth

Described by quick fetal growth

Incision via the peroneal musculature

A sheet of follicular cells around the oocyte

An enzyme in the acrosome

The cytoplasm of the oocyte

Time of embryonic/early fetal development

Described by the continued development of the organ systems

Introduction:

Labor is commonly known as childbirth. It is the process in which the fully grown fetus moves out of the woman’s body through the cervix. It occurs in three stages namely dilation, active labor, and expulsion stage.

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You aim to test the hypothesis that the Tbx4 and Tbx5 genes inhibit each other's expression during limb development. With access to chicken embryos and viruses capable of overexpressing Tbx4 and Tbx5, describe an experiment to investigate whether these genes suppress each other's expression in the limb buds. What results would you expect if they do repress each other? What results would you expect if they do not repress each other?
You decide to delete Fgf4 and Fgf8 specifically in the limb bud. Explain why you would not knock out these genes in the entire embryo instead.
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12 Organ Systems | Roles & functions | Easy science lesson; Author: Learn Easy Science;https://www.youtube.com/watch?v=cQIU0yJ8RBg;License: Standard youtube license