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Question
Suppose a researcher claims to be able to make a hybrid animal that is a cross between a human and a rhesus monkey. The normal diploid number for humans is 46, and the normal diploid number for rhesus monkeys is 48. Based on normal meiosis, how many chromosomes would the human gamete have, and how many chromosomes would the rhesus monkey have? Given these numbers, how many chromosomes would you expect the hybrid embryo to contain?
Answer
This answer is hidden. It contains 125 characters.
Related questions
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As sperm are made, they travel through the vas deferens and are stored in the seminal vesicles until ejaculation.
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Which of the following best describes the period during which the developing offspring is considered a fetus?
A) from fertilization to three weeks
B) from fertilization to eight weeks
C) the first trimester only
D) the third trimester only
E) from nine weeks until birth
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Which of the following statements concerning sperm and fertilization is correct?
A) The first sperm that approaches the egg is the one to fertilize the egg.
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C) The first capacitated sperm fertilizes the egg.
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A man has been experiencing reduced urine flow problems. After examination by his doctor, the diagnosis is an enlarged prostate gland. What is the connection between prostate enlargement and reduced urine flow?
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Sperm development takes about:
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B) 28 days.
C) 6 months.
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The sequence of development of sperm is:
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B) primary spermatocyte, spermatogonia, sperm.
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The vas deferens ducts empty sperm into the:
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B) epididymis.
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Which structure would be best described as helping to prepare the female tract for pregnancy and maintain it during the early phases of pregnancy?
A) vagina
B) uterine tube
C) oocyte
D) corpus luteum
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On average, about how often does ovulation occur?
A) every 6 months
B) every 28 days
C) every 14 days
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Through what structure does an oocyte travel on its way to the uterus?
A) uterine tube
B) cervix
C) vagina
D) ovary
Q:
If you could stop diffusion of substances in fruit fly zygotes, could you stop normal development? Why or why not?
Q:
Programmed cell death is also known as ________.
Q:
You are a substitute teacher in a high school biology lab class on the day the students are dissecting frogs. A particularly bright student happens to notice that the left adrenal gland is malformed in her frog. She asks if a problem in embryonic development could have caused that. Although there may be more than one reason, what might you propose as an explanation based on embryonic development?
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Cells become more and more specialized as development progresses.
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Eye cells can become beak cells once they are committed.
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Cleavage and gastrulation take place in animals such as humans and birds but not in frogs.
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The blastula is the stage of embryonic development in which cells migrate.
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The end of a zygote that contains less yolk is the animal pole.
Q:
ZPA cells of the chick embryo produce which morphogen?
A) sonic hedgehog
B) sonic chicken
C) bicoid
D) chicken wing factor
Q:
Which of the following is a process by which an initial set of genes turns on a second set of regulatory genes, which eventually turns on a third set of genes?
A) developmental chain reaction
B) gastrulation
C) the sonic hedgehog sequence
D) the genetic cascade
E) somite production
Q:
What is the effect of higher concentration of bicoid protein in part of a fruit fly embryo?
A) It will develop into the posterior end of the organism.
B) It will develop into the heart of the organism.
C) It will develop into the head end of the organism.
D) It lowers the chances of embryo survival.
Q:
Of the choices listed, the first event that occurs during embryonic development is:
A) germ layer formation.
B) blastula formation.
C) organogenesis.
D) cleavage.
Q:
Which characteristic is typical of the vegetal pole of an embryo?
A) The vegetal pole is composed of a single, large cell.
B) The vegetal pole is always hollow.
C) The vegetal pole contains relatively less yolk.
D) The vegetal pole has a relatively greater proportion of yolk.
E) The vegetal pole is the site of the development of the mouth.
Q:
The phase during which embryonic cells arrange themselves into three layers is called:
A) cleavage.
B) gastrulation.
C) organogenesis.
D) fertilization.
E) induction.