Gametogenesis and Non-disjunction

Question 1

Monosomy X, XO

Answer 1

Turner’s syndrome

Question 2

Turner’s syndrome

Answer 2

Monosomy X, XO

Question 3

Down Syndrome

Answer 3

Trisomy 21

Question 4

Trisomy 21

Answer 4

Down Syndrome

Question 5

Patau Syndrome

Answer 5

Trisomy 13

Question 6

Edward’s Syndrome

Answer 6

Trisomy 18

Question 7

Trisomy 13

Answer 7

Patau’s syndrome

Question 8

Trisomy 18

Answer 8

Edward’s syndrome

Question 9

47, XXY

Answer 9

Klinefelter Syndrome

Question 10

Klinefelter Syndrome

Answer 10

47, XXY

Question 11

Jacob’s Syndrome

Answer 11

Supermale 47, XYY

Question 12

Amniocentesis

Answer 12

Sampled with needle into amniotic fluid from amniotic sac, can be done at 16 weeks, lower chance of miscarriage

Question 13

Sampled with needle into amniotic fluid from amniotic sac, can be done at 16 weeks, lower chance of miscarriage

Answer 13

Amniocentesis

Question 14

Chorionic Villus Sampling

Answer 14

Samples placental (chornionic villus) tissue using a suction tube inserted into the cervix. Sampling done at 10-12 weeks, slightly higher risk of miscarriage.

Question 15

Samples placental tissue using a suction tube inserted into the cervix. Sampling done at 10-12 weeks, slightly higher risk of miscarriage.

Answer 15

Chorionic Villus Sampling

Question 16

Spermatogenesis

Answer 16

Process of sperm development

Question 17

Where sperm is made

Answer 17

Seminiferous Tubules

Question 18

When spermatogenesis begins

Answer 18

Puberty

Question 19

First cell in spermatogenesis

Answer 19

Spermatogonia

Question 20

Spermatogonia turn into

Answer 20

Primary Spermatocytes

Question 21

After meiosis I, primary spermatocytes turn into

Answer 21

Secondary Spermatocytes

Question 22

Cell after meiosis II of Secondary spermatocytes

Answer 22

Spermatids

Question 23

Spermiogenesis

Answer 23

Differentiation and maturation of Spermatids into spermatozoa

Question 24

Sperm cells

Answer 24

Spermatozoa

Question 25

1st cell of oogenesis

Answer 25

primodial cells

Question 26

after primordial cells undergo mitosis

Answer 26

primary oocytes

Question 27

when do primary oocytes arrest, when do they arrest until

Answer 27

prophase I, puberty

Question 28

What creates the follicle around primary oocytes

Answer 28

granulosa cells

Question 29

where is follicle stimulating hormone released

Answer 29

anterior pituitary glands

Question 30

after primary oocytes complete meiosis I

Answer 30

secondary oocyte, polar body

Question 31

when do secondary oocytes arrest

Answer 31

metaphase II

Question 32

Where does the secondary oocyte go after arrested in metaphase II

Answer 32

oviduct (fallopian tube)

Question 33

what is the compound of the secondary oocyte and the follicular cells called

Answer 33

corona radiata

Question 34

what causes the secondary oocyte to complete meiosis II

Answer 34

fertilization

Question 35

what is left after secondary oocyte divides

Answer 35

ovum, polar body

Question 36

asexual reproduction examples

Answer 36

- binary fission - mitosis - budding - fragmentation - vegetative propagation

Question 37

Parthenogenesis

Answer 37

plants form diploid gametes through mitotic oogenesis, directly develop into an embryo. Caused by restoration of the ploidy by doubling the chromosome number without cell division (before or after meiosis) or the fusion of haploid products (will not be identical to the mother)

Question 38

spore formation

Answer 38

haploid spores produced in sporangium from a diploid sporophyte. spores divide by mitosis into multicellular gametophyte to produce organs called gametangia that produces gametes. Fusion of gametes creates a diploid zygote that develops into a new sporophyte. Cycle is called alternation of generations.