Lab 1

Question 1

gonad

Answer 1

an organ that produces gametes; a testis or ovary

Question 2

gamete

Answer 2

a mature haploid male or female germ cell which is able to unite with another of the opposite sex in sexual reproduction

Question 3

zygote

Answer 3

a diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum

Question 4

cloaca

Answer 4

a common cavity at the end of the digestive tract for the release of both excretory and genital products in vertebrates and certain invertebrates

Question 5

anus

Answer 5

the opening at the end of the alimentary canal through which solid waste matter leaves the body

Question 6

germ cell

Answer 6

any cell that gives rise to the gametes of an organism that reproduces sexually. Infundibulum - a funnel shaped cavity or structure

Question 7

oocyte

Answer 7

a cell in an ovary which may undergo meiotic division to form an ovum

Question 8

follicle cell

Answer 8

cells that surround the oocyte within the follicle

Question 9

ectoderm

Answer 9

the outermost layer of cells or tissue of an embryo in early development, or the parts derived from this, which include the epidermis and nerve tissue

Question 10

mesoderm

Answer 10

the middle layer of an embryo in early development, between the endoderm and ectoderm

Question 11

endoderm

Answer 11

the innermost layer of cells or tissue of an embryo in early development, or the parts derived from this, which include the lining of the gut and associated structures

Question 12

homologous

Answer 12

similar in position, structure, and evolutionary origin but not necessarily in function

Question 13

competence

Answer 13

the ability to respond to a specific inductive signal

Question 14

neural crest

Answer 14

a collection of multipotent or pluripotent stem cells located at the side of the neural tube proximal to rhe epidermal layer after neuraltion