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Flashcards in lab practical 4 Deck (38)
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1
Q

what is gametogenisis

A

formation of gametes

2
Q

what gamete is for a male

A

sperm

3
Q

what gamete is for a female

A

egg

4
Q

what genetic information do males provide

A

nuclear dna

5
Q

what genetic information do females provide

A

nuclear dna, mitchondrial dna, cytoplasmic determinations

6
Q

syngamy produces what

A

zygote

7
Q

what occurs during 2 cell or 4 cell or 8 cell

A

cleavage

8
Q

describe morula

A

32 cells bundled together

9
Q

describe blastula

A

hollow ball with cells on outside of surface

10
Q

what is a gastrula

A

cell with an embryonic gut

11
Q

what is a neurula

A

nervous system development in a cell

12
Q

list the steps that happen during cell development

A

cell division
cell differentiation
cell migration
controlled cell death (apoptosis)

13
Q

what forms during gastrula stage

A

embryonic germ layers

endoderm, mesoderm, ectoderm

14
Q

what is used to keep egg from having multiple fertilizations

A

fast and slow block form

15
Q

where is slow block located on fertilized egg

A

around fast block

fertilization membrane

16
Q

where is the fast block located on fertilized egg

A

around egg itself

17
Q

list the gametogenisis of an egg

A

ovary, follicle, ovum (egg)

18
Q

another word for egg

A

ovum

19
Q

list the gametogenisis of sperm

A

testes, seminiferous tubules, spermatocytes mature into sperm

20
Q

what is another word for “in heat”

A

estrous

21
Q

haploid or diploid for oocyte

A

diploid

22
Q

original oocyte divides into how many during meiosis

A

2, one big and one small

23
Q

one big and one small oocyte divides into what during meiosis

A

one big functional egg and three polar bodies

24
Q

the placenta contains

A

both the maternal and fetal tissue

25
Q

phylum of pig

A

chordata

26
Q

subphylum of pig

A

vertebrata

27
Q

superclass of pig

A

gnathostomata

28
Q

class of pig

A

mammalia

29
Q

subclass of pig

A

theria

30
Q

infraclass of pig

A

eutheria

31
Q

order of pig

A

artiodactyla

32
Q

family of pig

A

suidae

33
Q

what is an estrous cycle

A

female hormonally driven cycle

34
Q

what hormones are in the estrous cycle

A

gonadotropin releasing hormone, follicle stimulating hormone, luteinizing hormone, estrogen, progesterone

35
Q

what hormones are from the ovary in the estrous cycle

A

estrogen and progesterone

36
Q

what hormones are from the brain in the estrous cycle

A

gonadotropin releasing hormone, follicle stimulating hormone and luteinizing hormone

37
Q

list the stages of cell development

A

fertilization of sperm and egg, zygote, 2cell, 4 cell, 8 cell, morula, blastula, gastrula, neurula

38
Q

what are the two types of cleavage

A

spiral and radial