BIOLOGY-TEXT
5th Edition
ISBN: 9781260169621
Author: BROOKER
Publisher: MCG
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Chapter 50, Problem 6TY
Summary Introduction
Introduction: Antidiuretic hormone (ADH) is secreted from the posterior lobe of pituitary gland. This hormone is secreted when the concentration of Na+ goes above the normal range in blood.
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Which of the following statements about iPS cells is correct?
A. They are derived from embryonic stem cells.
B. Transcription factors play a key role in their production.
C. When implanted into a mouse blastocyst, they are not able to produce viable offspring.
D. They have never been used in a human clinical trial.
Which of the following phenotypes would most likely be the result of aHox gene mutation? a. abnormal body length or height b. two different eye colors c. the contraction of a genetic illness d. two fewer appendages than normal
Why is it easier to manipulate embryonic stem cells to differentiate into various tissues than it is to manipulate a typical adult cell?
a.
As cells develop, signaling pathways can cause some genes to be turned off during development.
b.
Adult cells have different DNA content than do embryonic stem cells.
c.
Emybronic stem cells pose less of a threat for organ rejection as do an individual s own adult cells.
d.
It is no easier to manipulate emybronic stem cells to differentiate into various tissues than it is to manipulate a typical adult cell.
Chapter 50 Solutions
BIOLOGY-TEXT
Ch. 50.2 - Prob. 1CSCh. 50.3 - Prob. 1CSCh. 50.3 - Prob. 1EQCh. 50.3 - Prob. 2EQCh. 50.3 - Prob. 3EQCh. 50.4 - Prob. 1CCCh. 50.4 - Prob. 1CSCh. 50.4 - Prob. 2CCCh. 50.5 - Prob. 1CCCh. 50.5 - Prob. 2CC
Ch. 50 - Which is the defining feature of hormones? a. They...Ch. 50 - Steroid hormones are synthesized from ______blank...Ch. 50 - Prob. 3TYCh. 50 - Prob. 4TYCh. 50 - Prob. 5TYCh. 50 - Prob. 6TYCh. 50 - Which of the following pairs of hormones are...Ch. 50 - In invertebrates, molting of larvae is stimulated...Ch. 50 - Which of the following is true of the adrenal...Ch. 50 - Prob. 10TYCh. 50 - Prob. 1CQCh. 50 - Distinguish between type 1 and type 2 diabetes...Ch. 50 - Core Concept: Systems Organ systems often exert...Ch. 50 - Discuss the roles of hormones in growth and...Ch. 50 - Prob. 2COQ
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- Which of the following statements about the differential expression of human genes is correct? A. Differential expression does not occur during embryogenesis (development of the embryo). B. The unused genes in differentiated cells no longer retain the potential to be expressed. C. Gene expression patterns of all cells are identical. D. Every cell nucleus contains the complete genome established in the fertilized egg.arrow_forwardWhich of the following does not apply to mutations?a. They occur to cause adaptive changes in response to the environment.b. They are usually either harmful or neutral.c. They are only inherited if they occur in a sperm or egg cell.d. They often occur when DNA is copied.arrow_forwardWhen using gene therapy to treat an hereditary disease, the idea is to: A. Introduce the correct gene into the patient's DNA B. Inject the patient with a specific protein to cure the disease. C. Blood transfusions from healthy individuals. D. ntroduce mRNA molecules with the correct genetic information to the patient. E. Introduce a virus to the patient that will specifically destroy mutated cells.arrow_forward
- Estradiol is found in high levels in the pregnant rat. This estradiol is prevented from affecting the development of the fetus because: a. it is chemically converted to testosterone, which does not affect the fetus b. it is bound by alpha-fetoprotein c. the blood-brain barrier keeps estrogens like estradiol out of the brain d. the fetus does not possess the estrogen receptors needed to respond to the estradiolarrow_forward5)What are the characteristics of stem cells? (Select ALL that apply) Select one or more: a. They have the potential to develop into different cell types. b. They have the ability to make more stem cells. c. They have the potential to develop into any cell type in the human body. d. When certain genes are turned on, stems cell undergo differentiation. e. Stem cells can divide indefinitelyarrow_forwardA number of mosquito populations are today resistant to DDT, even though those species were not resistant to DDT when it was first introduced. Biologists would explain that DDT resistance evolved in mosquitos because: A. A few mosquitos were probably resistant to DDT before it was ever used. B. Mosquitos learned to adapt to their environment. C. Individual mosquitos built up an immunity to DDT after being exposed to it. D. Mosquitos needed to be resistant to DDT in order to survive.arrow_forward
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