Heredity

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Chapter 29 Heredity
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Clarence E. McClung - one of the first (1901) to
deduce that chromosomes determine the sex of
offspring.
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Figure 29.1
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Figure 29.1c
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EXPERIMENT True-breeding purple-flowered pea
plants and white-flowered pea plants were crossed
(symbolized by ?). The resulting F1 hybrids were
allowed to self-pollinate or were
cross- pollinated with other F1 hybrids. Flower
color was then observed in the F2 generation.
RESULTS Both purple-flowered plants and
white- flowered plants appeared in the F2
generation. In Mendels experiment, 705 plants
had purple flowers, and 224 had white flowers, a
ratio of about 3 purple 1 white.
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Table 14.2 Determination of ABO Blood Group by
Multiple Alleles
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Skin Color
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Pedigree analysis
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Figure 14.15 Achondroplasia
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Figure 29.2
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Figure 29.3
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Figure 29.4
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Figure 29.5
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Figure 29.6
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Figure 29.7
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Table 29.1
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Table 29.2
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I gt Clicker Question
General Topic Question The condition in which the
body maintains homeostasis would best be
described as A) the highest possible
metabolism. B) a state that fluctuates widely
from person to person. C) a relatively stable
internal environment depending upon
environmental conditions. D) a static state with
absolutely no deviation from preset points
(120/80 being normal blood pressure, for
example). E) Two of the above is correct.
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General Topic Question When you think of the
lymphatic system, which of the following are
correct? A) Lymph is a watery solution that
typically pools and collects on the inside of
the cells and needs to be collected and
transported back to the lymph nodes. B) Fluid
moves away from the circulatory system while in
lymphatic vessels. C) This system houses many of
the immune response cells of the body. D) Two
of the above are correct. E) None of the above
are correct.
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Semester Specific General Question Hormones used
in the short term stress response would
be A) aldosterone and norepinephrine. B) cortiso
l and thymosin. C) epinephrine and
norepinephrine. D) aldosterone and
adrenalin. E) Two of the above are correct.
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Semester Specific General Question Which
statement best describes veins? A) All carry
blood toward the heart. B) None carry oxygenated
blood. C) Most contain valves to prevent the
backflow of blood. D) Two of the above are
descriptive of veins. E) All of the above are
correct.
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New Information Style Question In a pedigree
chart, a female who does not demonstrate the
trait being studied is represented by
a A) darkened square. B) clear diamond.
C) clear circle. D) darkened triangle. E) darke
ned oval.
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The reason the hypodermis is protective
is A) it has no delicate blood vessels and can
therefore absorb more shock. B) because a
major part of its makeup is adipose, and
adipose tissue serves as an effective shock
absorber... minimizing damage. C) it is
located just below the epidermis and protects
the dermis from shock. D) All of the above are
correct.
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I gt Clicker Question
The process by which liquid-containing vesicles
are expelled out of a cell is called A) pinocytos
is. B) phagocytosis. C) exocytosis. D) receptor
-mediated endocytosis. E) channel-mediated
transport.
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The muscle type found in the vena cava (the blood
vessel that brings blood to the heart)
is A) cardiac. B) smooth. C) skeletal. D) volu
ntarily controlled. E) Two of the above are
correct
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An exocrine gland A) secretes material into the
bloodstream. B) expels material outside the
body. C) would be a likely mechanical device for
the expression of elastophosphoids. D) Two of
the above are correct. E) All of the above are
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Coating the skin and hair with oil is an activity
of A) the sebaceous glands. B) a type of
endocrine gland. C) a clathrin mediated receptor
interaction. D) Two of the above are
correct. E) All of the above are
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You are a new medical intern at St. Marys of
Michigan Hospital in Saginaw. Dee Gordon, the
famous player for the Great Lakes Loons, comes
into your office saying his previous doctor told
him he had bursitis, you immediately would
recognize that this disorder would be designated
as inflammation of A) an epiphyseal
disk. B) a cavity within a long bone filled with
synovial fluid. C) a membrane sac containing
fluid, probably at the elbow. D) a cartilage
at a joint, such as the knee.
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Think logically for this question.... If a muscle
were stretched to the point where actin filaments
and myosin filaments no longer overlapped, A) ADP
consumption would increase since the
sarcomere is trying to contract. B) cross-br
idge attachment would be optimum because of all
the free binding sites on actin. C) no muscle
tension could be generated. D) maximum force
production would result since the muscle has a
maximum range of travel. E) Two of the above are
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I gt Clicker Question
Homeostasis of calcium ion concentration depends
upon which of the following hormones? A) Parathym
us hormone B) Calcitonin C) Thyroxine D) Two
of the above are correct. E) None of the above
are correct.
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1) In total cross sectional area, there is more
area devoted to capillaries than arteries and
therefore 2) the blood pressure in the capillary
beds is much lower. A) Statements 1 2 are both
true. B) Statement 1 is true and statement 2 is
false. C) Statement 1 is false and statement 2
is true. D) Statements 1 2 are both false.
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The term given to the shape of the erythrocyte in
humans is A) dual convex disk. B) biconcave
disk. C) sickle shaped cell. D) myopic
disk. E) None of the above are correct.
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What is the main function of binocular
vision? A) Depth perception B) Color
vision C) Vision in dim light D) Accommodation
for near vision E) Two of the above are correct.
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Human egg and sperm are similar in that A) about
the same number of each are produced per
month. B) they have the same degree of
motility. C) they are about the same
size. D) they have the same number of
chromosomes.
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The chemical and mechanical processes of food
breakdown are called A) absorption. B) ingestion
. C) digestion. D) secretion.