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AP 2 > Test 4 - Questions on Final > Flashcards

Test 4 - Questions on Final Flashcards

1
Q

The color of your eyes is a normal polygenic trait

A

True

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2
Q

Use the figure to match the following with a LETTER: This gland stores hormones produced by the hypothalamus.

A

D- Posterior Pituitary

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3
Q

Use the figure to match the following with a LETTER: This gland produces melatonin.

A

C- Pineal gland

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4
Q

Which of these is NOT found in the karyotype of a normal human male?

  • 46 chromatids
  • 46 chromosomes
  • 92 DNA molecules
  • X and Y chromosomes
  • 23 pairs of homologous chromosomes
A

46 chromatids

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5
Q

If one allele is not phenotypically expressed in the presence of another allele, we say that it is a(an) ______ allele.

A

recessive

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6
Q

Germ cells have ______ unpaired chromosomes and are thus called _____ cells.

A

23; haploid (n)

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7
Q

The allele for the cleft chin (C) is dominant to the allele for uncleft chin (c). A male and female who are both heterozygous for cleft chin have a child. What is the chance that this child will have an uncleft chin?

A

25%

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8
Q

Use the figure to match the following with a LETTER: This gland produces glucocorticoids and mineralocorticoids.

A

K- Adrenal cortex

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9
Q

The alleles posessed by all members of a population collectively are called the____.

A

gene pool

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10
Q

Use the figure to match the following with a LETTER: This gland produces insulin and glucagon

A

G- Pancreas

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11
Q

Critical thinking Question:

Which blood type would NOT be possible for children of a type AB mother and a type A father?

A

O

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12
Q

Cancers in epiuthelial tissue are called ____

A

carcinoma

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13
Q

Cancers in bone, other connective tissue, or muscle are called _____

A

Sarcoma

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14
Q

Enviromental agents that can cause cancers are called ______

A

carcinogens

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15
Q

The organ systems rudimentarily (initially) form durning the:

A

embryonic period

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16
Q

Which of the following inplants in, or attaches to, the endometrium of the uterus?

A

blastocyst

17
Q

What follows immediately after fertilization occurs?

A

cleavage

18
Q

What is the neonatal period?

A

The first 6 weeks of life

19
Q

What does the ectoderm form?

A

nervous system and skin

20
Q

What does gastrulation accomplish?

A

formation of the three germ layers

21
Q

Which statement is true regarding telomeres?

A

Telomeres are DNA segments at each end of a chromosome

22
Q

Down Syndrome (trisomy-21) results from ______.

A

nondisjunction

23
Q

Which is NOT an embryonic membrane?

  • amion
  • yolk sac
  • placenta
  • chorion
  • allantis
A

Placenta

24
Q

During implantation, the trophoblast divides into a superficial layer called the ____, which is composed of a multinucleate mass of cytoplasm.

A

syncytiotrophoblast

25
Q

In the blastocyst, the trophoblast will become ____, whereas the embryoblast will become ____.

A

part of the placenta; the embryo

26
Q

Twins produced when a single egg is fertilized are called ____ twins. Twins produced from 2 eggs ovulated at the same time are called ____ twins.

A

monozygotic; dizygotic

27
Q

Use the figure to match the following with a LETTER: This gland produces and releases a hormone that raises blood calcium levels.

A

J- Parathyroid glands

28
Q

What stimulates melatonin production?

A

Light and dark cycles

29
Q

Which hormone lowers blood glucose levels?

A

Insulin

30
Q

The effects of norepinephrine and epinephrine have nearly the same effects as the neurotransmitters of the:

A

Sympathetic Nervous System

31
Q

What hormones are produced by zone glomerulosa of the adrenal cortex?

A

Mineralocorticoids

32
Q

Which of the following is a gonadotropin?

  • GH
  • TRH
  • FSH
  • ACTH
A

FSH

33
Q

Which of the following is true regarding endocrine glands?

  • Their secretions may be released onto the body surface.
  • They have an unusually low density of blood capillaries.
  • They secrete their products by way of ducts.
  • They secrete substances that do not alter the metabolism of their target cells, but have extracellular effects.
  • They release thier secretions into the blood.
A

They release their secretions into the blood.

34
Q

Use the figure to match the following with a letter:

This neuroendocrine organ (gland) produces and releases Catecholamines

A

L- Adrenal Medulla

35
Q

Which of the following is the last step in the sequence of events happening when cyclic AMP (cAMP) acts as a second messenger?

A

Enzymes are activated or deactivated by the action of protein kinases

AP 2 (6 decks)

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