Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 28, Problem 14RQ
The placenta is formed from ________.
- the embryo’s mesenchymal cells
- the mother’s endometrium only
- the mother’s endometrium and the embryo’s chorionic membrane
- the mother’s endometrium and the embryo’s umbilical cord
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The shape of radishes may be long (SL/SL), oval (SL/SS), or round (SS/SS), and the color of radishes may be red (CR/CR), purple (CR/CW) or white (CW/CW). If a long, red radish plant is crossed with a round, white plant, what will be the appearance of the F1 and F2 generations?
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Question #3:
In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would
transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming
there was just one gene conferring gametophytic obligate apomixis, and that the two parents are
inbreds, what would be the consequences of such a cross if:
a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non-
apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic
and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female
first (left side) in the parental cross.
b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non-
apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic
and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female
first (left side) in the…
Chapter 28 Solutions
Anatomy & Physiology
Ch. 28 - View this time-lapse movie...Ch. 28 - Visit this site...Ch. 28 - Sperm and ova are similar in terms of ________....Ch. 28 - Although the male ejaculate contains hundreds of...Ch. 28 - As sperm first reach the oocyte, they will contact...Ch. 28 - Fusion of pronuclei occurs during ________....Ch. 28 - Sperm must first complete ________ to enable the...Ch. 28 - Cleavage produces daughter cells called ________....Ch. 28 - The conceptus, upon reaching the uterus, first...Ch. 28 - The inner cell mass of the blastocyst is destined...
Ch. 28 - Which primary germ layer gave rise to the cells...Ch. 28 - What would happen if the trophoblast did not...Ch. 28 - During what process does the amnion envelop the...Ch. 28 - The placenta is formed from ________. the embryos...Ch. 28 - The foramen ovale causes the fetal circulatory...Ch. 28 - What happens to the urine excreted by the fetus...Ch. 28 - During weeks 9–12 of fetal development,...Ch. 28 - Progesterone secreted by the placenta suppresses...Ch. 28 - Which of the following is a possible culprit of...Ch. 28 - How does the decrease in progesterone at the last...Ch. 28 - Which of these fetal presentations is the easiest...Ch. 28 - Which of these shunts exists between the right and...Ch. 28 - Why is brown fat important? It is the newborns...Ch. 28 - Constriction of umbilical blood vessels during...Ch. 28 - Alveoli are connected to the lactiferous sinuses...Ch. 28 - How is colostrum most important to a newborn? It...Ch. 28 - Mature breast milk ________. has more sodium than...Ch. 28 - Marfan syndrome is inherited in an autosomal...Ch. 28 - In addition to codominance, the ABO blood group...Ch. 28 - Zoe has cystic fibrosis. Which of the following is...Ch. 28 - Darcy and Raul are having difficulty conceiving a...Ch. 28 - Sherrise is a sexually active college student. On...Ch. 28 - Approximately 3 weeks after her last menstrual...Ch. 28 - The Food and Nutrition Board of the Institute of...Ch. 28 - What is the physiological benefit of incorporating...Ch. 28 - Why would a premature infant requite supplemental...Ch. 28 - Devin is 35 weeks pregnant with her first child...Ch. 28 - Janine is 41 weeks pregnant with her first child...Ch. 28 - Describe how the newborns fust breath alters the...Ch. 28 - Newborns are at much higher risk for dehydration...Ch. 28 - Describe the transit of breast milk from...Ch. 28 - A woman who stopped breastfeeding suddenly is...Ch. 28 - Explain why it was essential that Mendel perform...Ch. 28 - How can a female carrier of an X-linked recessive...
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