Biology: Science for Life with Physiology (5th Edition)
5th Edition
ISBN: 9780321922212
Author: Colleen Belk, Virginia Borden Maier
Publisher: PEARSON
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Chapter 7, Problem 6LTB
Scientists have recently developed a process by which a skin cell from a human can be triggered to develop into a human heart muscle cell. This is possible because ___________.
- most cells in the human body contain the genetic instructions for making all types of human cells;
- a skin cell is produced when all genes in the cell are expressed; turning off some genes in the cell results in a heart cell;
- scientists can add new genes to old cells to make them take different forms;
- a skin cell expresses only recessive alleles, so it can be triggered to produce dominant heart cell alleles;
- it is easy to mutate the genes in skin cells to produce the alleles required for other cell type
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A lab wants to convert a skin cell back into an embryonic stem cell (to
create what is known as an induced pluripotent stem cell). They
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accomplishing this.
Discussion Question 1:
Once you have transformed these factors into your skin cell,
how might you identify your induced pluripotent stem cells?
List three characteristics you could look for.
A controversial issue, closely related to cloning, that has caused a lot of debate is the use of embryonic stem cells. One possible application of these cells is that they may be able to supply replacement tissues to treat diseases such as Parkinson's disease, diabetes, paralysis due to spinal cord injuries, and other degenerative diseases. The word "embryonic", has caused fierce opposition to this type of research because embryos are destroyed when the stem cells are removed. Questions that have surfaced in this debate include: When a cell nucleus is transferred to another cell, have we created life? Does a stem cell have the same status as a human? What should be done with the embryos that are leftover at in vitro fertilization (IVF), clinics? Advocates argue that the medical benefits of stem cell research would be enormous. Opponents argue that life begins at conception and thus this type of research is abortion.
Based on what you have read, explain why you are for or against stem…
Homeotic genes are important for ________.
Question 6 options:
gene expression in prokaryotes
the development of an organism's body plan
gene regulation in eukaryotic cells
signal transduction pathways
Chapter 7 Solutions
Biology: Science for Life with Physiology (5th Edition)
Ch. 7 - What is the relationship between genotype and...Ch. 7 - Prob. 2LTBCh. 7 - Prob. 3LTBCh. 7 - Prob. 4LTBCh. 7 - Prob. 5LTBCh. 7 - Scientists have recently developed a process by...Ch. 7 - What is the physical basis for the independent...Ch. 7 - Prob. 8LTBCh. 7 - Prob. 9LTBCh. 7 - Prob. 10LTB
Ch. 7 - Prob. 1GPCh. 7 - Prob. 2GPCh. 7 - Prob. 3GPCh. 7 - Prob. 4GPCh. 7 - Pfeiffer syndrome is a dominant genetic disease...Ch. 7 - Prob. 6GPCh. 7 - A cross between a pea plant that produces round...Ch. 7 - Prob. 8GPCh. 7 - The allele BRCA2 was identified in families with...Ch. 7 - Two parents both have brown eyes, but they have...Ch. 7 - Prob. 2AAATBCh. 7 - Prob. 3AAATBCh. 7 - Prob. 1CTSCh. 7 - Prob. 2CTSCh. 7 - Prob. 3CTS
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