Question 1

The lungs develop from

Accepted Answer

A)   somitomeres.
B)   neural crest cells.
C)   an evagination from the foregut.
D)   an evagination from the floor of the diencephalon.
E)   an invagination from the hindgut.F) C) and D)
G) A) and C)

Question 2

The actual genetic constitution of an individual is its

Accepted Answer

A)   structural gene.
B)   autosome.
C)   genotype.
D)   polygenic.
E)   y-linked.F) A) and B)
G) B) and C)

Question 3

The hormone(s)  responsible for preparing the breasts for lactation during pregnancy is (are) .

Accepted Answer

A)   estrogen.
B)   progesterone.
C)   oxytocin.
D)   prolactin.
E)   both estrogen and progesterone.F) All of the above
G) A) and B)

Question 4

-The picture shows a full term pregnancy. What does "B" represent?

Accepted Answer

A)   placenta
B)   umbilical cord
C)   urinary bladder
D)   mucus plug in cervical canal
E)   vaginaF) A) and D)
G) C) and E)

Question 5

-The picture shows a mature placenta and fetus. What does "C" represent?

Accepted Answer

A)   umbilical vein
B)   umbilical arteries
C)   umbilical cord
D)   placenta
E)   endometriumF) A) and D)
G) B) and E)

Question 6

The allantois enlarges to form the

Accepted Answer

A)   kidney.
B)   gonads.
C)   ureter.
D)   urinary bladder.
E)   urethra.F) All of the above
G) B) and E)

Question 7

A gene that is responsible for producing trypsin in the pancreas would be a ____ gene.

Accepted Answer

A)   dominant
B)   regulatory
C)   structural
D)   recessive
E)   functionalF) All of the above
G) C) and D)

Question 8

Which of the following organs develops from evaginations along the early digestive tract?

Accepted Answer

A)   heart
B)   adrenal medulla
C)   lungs
D)   nasal cavity
E)   kidneysF) A) and B)
G) A) and E)

Question 9

-What does "B" represent on the diagram?

Accepted Answer

A)   fertilization
B)   morula
C)   blastocyst
D)   implantation
E)   ovulationF) A) and D)
G) A) and C)

Question 10

A mutation involving a single nucleotide is a _____ mutation.

Accepted Answer

A)   deletion
B)   duplication
C)   nondisjunction
D)   point
E)   aneuploidyF) B) and D)
G) A) and C)

Question 11

The onset of puberty is signaled by

Accepted Answer

A)   a growth spurt.
B)   emotional upheaval.
C)   attainment of full adult stature.
D)   the ability to obtain a drivers license.
E)   a halt to growth.F) A) and B)
G) A) and C)

Question 12

Down Syndrome is an example of an aneuploidy called

Accepted Answer

A)   monosomy 21.
B)   trisomy 21.
C)   monosomy 23.
D)   trisomy 17.
E)   disomy 21.F) B) and E)
G) All of the above

Question 13

Which of the following organ systems is derived from all three germ layers?

Accepted Answer

A)   nervous
B)   cardiovascular
C)   endocrine
D)   integumentary
E)   skeletalF) A) and D)
G) B) and D)

Question 14

What event separates childhood from adolescence?

Accepted Answer

A)   puberty
B)   infancy
C)   formation of germ layers
D)   beginning to walkE) B) and C)
F) A) and B)

Question 15

Which gland is formed by an evagination from the floor of the diencephalon?

Accepted Answer

A)   anterior pituitary gland
B)   posterior pituitary gland
C)   thyroid gland
D)   adrenal glands
E)   pancreasF) C) and D)
G) B) and C)

Question 16

The greenish discharge from the lower digestive tract shortly after birth is called

Accepted Answer

A)   colostrum.
B)   jaundice.
C)   bile.
D)   meconium.
E)   prolactin.F) None of the above
G) B) and E)

Question 17

Through what structure do epiblast cells migrate to form the mesoderm?

Accepted Answer

A)   lacunae
B)   chorionic villi
C)   hypoblast
D)   primitive streak
E)   blastoceleF) C) and D)
G) A) and B)

Question 18

A mistake during segregation of chromosomes is called

Accepted Answer

A)   deletion.
B)   duplication.
C)   nondisjunction.
D)   point mutation.
E)   aneuploidyF) B) and E)
G) B) and D)

Question 19

Genes on the X chromosomes are

Accepted Answer

A)   polygenic.
B)   X-linked.
C)   simple.
D)   holandric.
E)   Y-linked.F) C) and E)
G) A) and C)

Question 20

An organism's genetic makeup is its ____ while its physical appearance is its ____.

Accepted Answer

A)   chromotype; phenotype
B)   genotype; phenotype
C)   phenotype; genotype
D)   genotype; chromotype
E)   aminotype; prototypeF) B) and D)
G) A) and B)

Exam 29: Development, Growth, Aging, and Genetics

The lungs develop from

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What event separates childhood from adolescence?

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Through what structure do epiblast cells migrate to form the mesoderm?

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The actual genetic constitution of an individual is its

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The onset of puberty is signaled by

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The hormone(s) responsible for preparing the breasts for lactation during pregnancy is (are) .

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-The picture shows a mature placenta and fetus. What does "C" represent?

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The greenish discharge from the lower digestive tract shortly after birth is called

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-The picture shows a full term pregnancy. What does "B" represent?

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Which gland is formed by an evagination from the floor of the diencephalon?

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Which of the following organ systems is derived from all three germ layers?

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Down Syndrome is an example of an aneuploidy called

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-What does "B" represent on the diagram?

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Which of the following organs develops from evaginations along the early digestive tract?

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A mutation involving a single nucleotide is a _____ mutation.

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Genes on the X chromosomes are

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The allantois enlarges to form the

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A gene that is responsible for producing trypsin in the pancreas would be a ____ gene.

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A mistake during segregation of chromosomes is called

Correct AnswerverifiedShow Answer

An organism's genetic makeup is its ____ while its physical appearance is its ____.

Correct AnswerverifiedShow Answer

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An organism's genetic makeup is its while its physical appearance is its .

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