Chapter 11 Deck 6 (Slides 39-

Question 1

The only cells in an organism that contain a SINGLE SET OF CHROMOSOMES and therefore a SINGLE SET OF GENES are _____

Answer 1

GAMETES

Question 2

Gametes cells are said to be HAPLOID or _______, or N,- means “1 set” of chromosomes

Answer 2

MONOPLOID

Question 3

the haploid number for fruit flies is N=__. (fruit fly gametes have this many chromosomes)

Answer 3

4

Question 4

the haploid number for humans is N= __ (each sperm and egg cell has ___ (1 set of) chromosomes

Answer 4

23

Question 5

HAPLOID CELLS (GAMETES) are produced from DIPLOID CELLS by the process of _____

Answer 5

Meiosis

Question 6

Meosis occurs in the ____ (TESTES or OVARIES) of sexually reproducing organisms

Answer 6

Gonads

Question 7

MEIOSIS is the process by which the CHROMOSOME NUMBER per cell is ___ _ ____ through the SEPARATION of HOMOLOGOUS CHROMOSOMES (chromosome pairs)

This is often called ______ DIVISION

Answer 7

cut in half

Reduction

Question 8

Reduction Division Involves 2 distinct cell divisions (MEIOSIS __ and MEIOSIS __ )

Answer 8

1 and 2

Question 9

Meiosis _ separates the chromosome pairs

Answer 9

I

Question 10

____ formation – occurs during Prophase I

Answer 10

Tetrad

Question 11

CROSSING-OVER may occur, which increases GENETIC ____

Answer 11

Variation

Question 12

Meiosis __ (just like Mitosis – separates sister chromatids)

Answer 12

II (2)

Question 13

GAMETE FORMATION is called _____ (Meiosis in humans)

Answer 13

GAMETOGENESIS

Question 14

Gamete formation that occurs in the TESTES is called _____

Answer 14

SPERMATOGENESIS 

Question 15

SPERMATOGENESIS is a process that continues throughout males’ lifetime _____

Answer 15

continually

Question 16

____ is gamete formation that occurs in the OVARIES.

Answer 16

OOGENESIS

Question 17

True or False: A female is born with all the eggs she will produce in a lifetime

Answer 17

True.

Question 18

females form specialized diploid (2N) cells in their ____

Answer 18

ovaries

Question 19

starting at PUBERTY, ONCE A MONTH one of these specialized diploid cells undergoes meiosis to form __ EGG CELL

Answer 19

one

Question 20

_____ ______: genes for traits that are inherited together must be on the same chromosome, which causes them to be inherited together

Answer 20

Linked Genes

Question 21

Morgan hypothesized that genes that were FURTHER AWAY from each other on the chromosome would cross over _____

Genes that were CLOSER to each other genes would cross-over ____

Answer 21

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