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Lecture 7: Reproductive Sytem and Human Genetics
N/A
22
Biology
Undergraduate 3
04/14/2013

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Term
Luteinizing hormone (LH) and human chorionic gonadotropin (hCG) ___
Definition
maintain the function of the corpus luteum
Term
Ovulation occurs at which day of the ovarian cycle?
Definition
14
Term
At the end of the ovarian cycle, if a woman is not pregnant, the corpus luteum ____
Definition
disintegrates
Term
What is the function of luteinizing hormone (LH) and follicle-stimulating (FSH)?
Definition
They stimulate oocytes to develop and ovaries to release estrogen and progesterone
Term
The archenteron is the primitive _____ of an embryo and is completelly surrounded by _____.
Definition
gut/ endoderm
Term
From outside to inside, an embryo at the end of gastrulation has the following three embryonic tissue layers:
Definition
ectoderm, mesoderm, endoderm
Term
Which of the following adult tissues or organs arises from the mesoderm?
Definition
circulatory system
Term
A karyotype ____
Definition
is a visual display of chromosomes arranged according to size
Term
Which of the following designates a normal human female?
a. XXY
b. XY
c. XX
d. XYY
e. XO
Definition
c
Term
A locus is___
Definition
the location of an allele on a chromosome
Term
Various forms of a gene at a given locus are called
Definition
alleles
Term
Chromosomes other than those involved in sex determination are known as
Definition
autosomes
Term
DNA coding regions that affect the same trait are called
Definition
alleles
Term
If two genes are almost always found in the same gamete, they are ___
Definition
located close together on the same chromosome
Term
Genes that are located on the same chromosome
a. tend to be inherited together.
b. will appear together in the gamete.
c. are said to be linked.
d. may be separated during crossing over.
e. all of these
Definition
e
Term
Genetic recombination as a result of crossing over occurs more readily in genes that are located ___
Definition
far apart on the same chromosome
Term
_____ segregate during _____ .
Definition
Homologues/ meiosis
Term
The probability of a crossover occurring between two genes on the same chromosome is _____ .
Definition
increased if they are farther apart on the chromosome
Term
Alleles are _____ .
Definition
different molecular forms of genes
Term
Hemophilia
a. is rare in the human population.
b. is more common among men.
c. was common in English royalty.
d. is an X-linked recessive trait.
e. all of these
Definition
e
Term
Genetic disorders are caused by _____ .
a. altered chromosome number
b. altered chromosome structure
c. mutation
d. all of the above
Definition
d
Term
A recognized set ot symptoms that characterize a specific disorder is a _____ .
Definition
syndrome
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