Meiosis

Question 1

The form of cell division by which gametes, with half the number of chromosomes, are produced.

Answer 1

Meiosis

Question 2

Sexual reproduction

Answer 2

Meiosis

Question 3

The fusion of a sperm and egg to form a zygote

Answer 3

Fertilization

Question 4

Egg

Answer 4

n=23

Question 5

Sperm

Answer 5

n= 23

Question 6

Zygote

Answer 6

2n=46

Question 7

Spermatogenisis

Answer 7

Male

Question 8

Oogenesis

Answer 8

Female

Question 9

Diploid

Answer 9

2n= 46

Question 10

Chromosomes replicate

Answer 10

Interphase 1

Question 11

Centriole pairs also replicate

Answer 11

Interphase 1

Question 12

Each duplicated chromosome consist of two identical sister chromatids attached at their centromeres

Answer 12

Interphase 1

Question 13

Nucleus and nucleolus visible

Answer 13

Interphase 1

Question 14

Cell division that reduce the chromosome number by one half

Answer 14

Meiosis 1

Question 15

Longest and most complex phase (90%)

Answer 15

Prophase 1

Question 16

Chromosomes condense

Answer 16

Propase 1

Question 17

Sypnasis occurs: homologous chromosomes come together to form TETRAD

Answer 17

Prophase 1

Question 18

homologous chromosomes come together to form?

Answer 18

Tetrad

Question 19

Two chromosomes or four chromatids (sister and non sister chromatids)

Answer 19

Tetrad

Question 20

Pag pinagsama yung 2 sister chromatids anong mabubuo?

Answer 20

Tetrad

Question 21

Pair of chromosomes (maternal and paternal) that are similar in shape and sizes

Answer 21

Homologous chromosomes

Question 22

Homologous pairs

Answer 22

Tetrad

Question 23

Human have __ pairs of homologous chromosomes

Answer 23

23
22 pairs of autosomes
01 pair of sex chromosomes

Question 24

A method of organizing the chromosomes

Answer 24

Karyotype

Question 25

Xx chromosomes

Answer 25

Female

Question 26

Xy chromosomes

Answer 26

Male

Question 27

In humans the sex chromosomes are the __ set

Answer 27

23rd

Question 28

May occur between non sister chromatids at the chiasmata

Answer 28

Crossing over

Question 29

Are the sites of crossing over

Answer 29

Chiasmata(chiasma)

Question 30

Shortest phase

Answer 30

Metaphase 1

Question 31

Tetrads allign on the metaphase plate

Answer 31

Metaphase 1

Question 32

what is the formula in metaphase 1

Answer 32

n
2

Question 33

In terms of independent assortment- how many different combinations of sperm could a human pale produce?

Answer 33

Human chromosomes: 2n= 46
n=23

2²³= 8 million combinations

Question 34

Homologous chromosomes separate and move towards the poles

Answer 34

Anaphase 1

Question 35

Sister chromatids remain attached at their centromere

Answer 35

Anaphase 1

Question 36

Each pole now has haploid set of chromosomes

Answer 36

Telophase 1

Question 37

Cytokinesis occurs and two haploid daughter cells are formed

Answer 37

Telophase 1

Question 38

No more DNA replication

Answer 38

Meiosis II

Question 39

Four haploid daughter cells produced

Answer 39

Telophase

Question 40

What are the 3 sexual sources of genetic variation?

Answer 40

1. Crossing over (prophase 1)
2. Independent assortment (metaphase 1)
3. Random fertilization

Question 41

VARIATION IS GOOOOD!!

Answer 41

omsim

Question 42

Important to population as the raw material for?

Answer 42

Natural Selection