Development & Genetics

Question 0

Gamete

Answer 0

Sperm/ovum

Question 1

Fertilization

Answer 1

Union of gametes

Question 2

Zygote

Answer 2

Single cell made from fertilization

Question 3

Cleveage

Answer 3

Rapid motorized divisions after fertilization

Question 4

Morula

Answer 4

Solid ball of cells made from cleavage

Question 5

Blastocyte

Answer 5

Hollow balls of cells

Question 6

Blastocyte made of

Answer 6

Blastocyst cavity, trophoblast, innercell mass

Question 7

Gastrulation

Answer 7

Formation of gastrula

Question 8

3 primary germ layers of gastrula

Answer 8

Ectoderm, mesoderm, endoderm

Question 9

Ectoderm

Answer 9

Nervous system and epidermis

Question 10

Mesoderm

Answer 10

Muscles, blood and vessels, connective tissue

Question 11

Endoderm

Answer 11

GI tract, respiratory system, urinary system

Question 12

Amnion

Answer 12

Inner of the 2 thin membranes surrounding fetus

Question 13

Chorionic villus

Answer 13

Villi sprouting from chorion to give max contact with maternal blood

Question 14

Body stalk

Answer 14

Band of mesoderm connecting caudal end of embryo to the chorion

Question 15

Yolk sac

Answer 15

Membrane outside of embryo connected by a tube (yolk stalk)

Question 16

Serves as early site for formation of blood and turns into the gut of embryo

Answer 16

Yolk sac

Question 17

Alternate forms of a gene that control a trait. Located same place as homologous chromosomes

Answer 17

Alleles

Question 18

Allele that overrides alternatives. Is expressed

Answer 18

Dominance

Question 19

Alleles presence is masked

Answer 19

Recessive

Question 20

Genetic makeup

Answer 20

Genotype

Question 21

Phenotype

Answer 21

Expresses genetic makeup

Question 22

2 chromosomes belonging to a pair

Answer 22

Homologous chromosomes

Question 23

Same alleles in a pair

Answer 23

Homozygous

Question 24

Different alleles in a pair

Answer 24

Heterozygous

Question 25

Chromosomes not including sex chromosomes (X,Y)

Answer 25

Autos ones

Question 26

Chromosome display of an individual

Answer 26

Karyotypes

Question 27

Half complement of chromosomes. 23 chromosomes

Answer 27

Haploid

Question 28

Full chromosome compliments 46

Answer 28

Diploid

Question 29

Shows possible combos of alleles from parent to offspring

Answer 29

Punnet square

Question 30

Defective X chromosome revealed in males (x,y)

Answer 30

Sex (x) linked disorders

Question 31

Invades mucosae of reproductive and urinary tracts. "The clap"

Answer 31

Gonorrhea

Question 32

By corkscrew shaped bacterium "treponema pallium" . Can be from infected mother. Can be rash on skin

Answer 32

Syphilis

Question 33

Virus like bacteria (requires host). Painful pee and discharge

Answer 33

Chlamydia

Question 34

Most common STI (in young women). Parasitic infection with yellow green vaginal discharge

Answer 34

Trichomoniasis

Question 35

Due to HPV (Human papilloma virus). Second most common STI in US

Answer 35

Genital warts

Question 36

Dangerous virus that suddenly flares up. Infectious secretions or skin to skin contact

Answer 36

Genital herpes