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16 Feb 2018

The Male Reproductive Syste." 1.) The process of cell division in which diploid cells are converted to haploid gametes is called. 2.) Release of LH & FSH is regulated by the hormoneproduced by the hypothalamus. 3.) An accessory gland lying inferior to the urinary bladder & surrounding the urethra in the male is the _____________.

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Irving HeathcoteLv2

18 Feb 2018

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Related questions

Match the terms to the definitions provided.

Question 1 options:

	gamete
	somatic cells
	zygote
	sexual reproduction

1.	Reproductive life cycle that involves an alternation between haploid and diploid cells
2.	A single cell with a diploid number of chromosomes resulting from the fusion of an egg and a sperm.
3.	Cells (egg or sperm) resulting from a meiotic division of germ-line cells
4.	The non-reproductive cells found in embryos and mature individuals

Question 2 (5 points)

Match the terms to the definitions provided.

Question 2 options:

	syngamy
	haploid
	meiosis
	diploid
	germ-line cells

1.	The cells that will eventually undergo meiosis to produce gametes.
2.	The number of chromosomes found in gametes (eggs or sperm).
3.	The process by which two haploid gametes fuse to form a new diploid cell.
4.	A specialized reduction division that produces cells with half the normal number of chromosomes.
5.	Two sets of chromosomes present in the somatic cells of adult individuals.

QUESTION 5

Robert Wadlow suffered from gigantism. He probably had ahormone-secreting tumor. Where was this tumor most likelylocated?

		anterior pituitary
		posterior pituitary
		thyroid
		adrenal cortex

10 points

QUESTION 6

Which of the following is an example of parthenogenesis?

		fragmentation of a sea start (new individual grows from onearm)
		development of a chicken from an unfertilized egg
		two sexes in a single fish
		sex change in adult fish (female to male)

10 points

QUESTION 7

You are studying two populations of rotifers. In Population 1,you find significantly higher genetic diversity than in Population2. You also observe that females in Population 2 have significantlymore offspring, most of which are haploid, whereas in Population 1,females have fewer diploid offspring. What is the most likelyexplanation of the differences between the rotifer populations?

		Population 1 reproduces by budding while Population 2 reproducesby regeneration.
		Population 1 reproduces by regeneration while Population 2reproduces sexually.
		Population 1 reproduces sexually while Population 2 reproducesby parthenogenesis.
		Population 1 reproduces by parthenogenesis while Population 2reproduces by budding

10 points

QUESTION 8

If you were to inject a substance that prevents the hypothalamusfrom releasing GnRH near the end of the follicular phase of anotherwise normally functioning female, what would be the mostlikely result?

		FSH and LH levels would not surge normally and ovulation wouldnot occur
		FSH levels would surge, but LH levels would not; normalovulation would occur
		FSH and LH levels would surge to levels above normal andhyperovulation (release of eggs from multiple follicles) wouldoccur
		SH would not surge, but LH would; ovulation would not occur

What is the purpose of meiosis?

To enable an organism to produce gametes

To allow for growth

To allow an organism to replace damaged cells

Question 2

Select one answer.

10 points

Mitosis results in ________ and meiosis results in ________.

gametes, somatic cells

gametes, gametes

somatic cells, somatic cells

somatic cells, gametes

Question 3

Select one answer.

10 points

Which of the following tasks is accomplished through the processof meiosis?

Cell growth

Production of sperm or eggs

Replacement of dysfunctional cells

Question 4

Select one answer.

10 points

What advantage does sexual reproduction have over asexualreproduction?

All other selections are true.

Sexual reproduction provides more genetic variability

Sexual reproduction doubles the number of chromosomes in aspecies

Sexual reproduction is more efficient

Question 5

Select one answer.

10 points

Crossing over occurs between homologous chromosomes during whatstage of cell division? (Read each option carefully.)

Prophase I of meiosis

Prophase of mitosis

Prophase II of meiosis

Interphase

Question 6

Select one answer.

10 points

Corn has 20 chromosomes. When corn undergoes meiosis how manychromosomes are found in the gametes?

Question 7

Select one answer.

10 points

Homologous chromosomes separate and are pulled to opposite sidesof the cell during what stage of cell division? (Read each optioncarefully.)

Metaphase I of meiosis

Anaphase II of meiosis

Anaphase I of meiosis

Anaphase of mitosis

Question 8

Select one answer.

10 points

Mitosis results in ______ cells and meiosis results in _______cells.

diploid, haploid

haploid, diploid

diploid, diploid

haploid, haploid

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