the genetics project

Question 1

hemophilia and colorblindness are

Answer 1

sexlinked genes

Question 2

in a karyotype ____ are labelled with #s and ___ are labeled with lettes

Answer 2

autosomes and sex chromsomes

Question 3

karyotypes tell us 3 things

Answer 3

1) species (different species have different amounts of chromosomes )
2) gender
3) chromsomal disorders

Question 4

chromosomal disorder types

Answer 4

1-translocation
2 trisomy
3 monosomy

Question 5

whats a translocation

Answer 5

when part of a chromosome breaks off and attached to another

Question 6

2n

Answer 6

of chromsomes in somatic cells

Question 7

n

Answer 7

of chromsomes in gametes

Question 8

in a karyotype, what are the dark regions of a chromsom

Answer 8

heterochromatin- the non expressed genes so tightly coiled that mRNA can do anything and they aren’t ex spressed

Question 9

in a karyotype, what are the lighter regions of a chromosome

Answer 9

euchromatin-the expressed genes.

Question 10

13 trisomy

Answer 10

pataus syndrome

Question 11

21 trisomy

Answer 11

down syndrome

Question 12

XXY

Answer 12

klinefelter

Question 13

XO

Answer 13

turners syndrome

Question 14

XXX, XXXX, XXXXX, XXXY, XXXXY

Answer 14

multiple sex chromsomes

Question 15

D-G translocation

Answer 15

fragment beaks off D and goes to G

Question 16

in a pedigree a double line =

Answer 16

consanguinous marriage (marriage within a family)

Question 17

in a pedigree, a diamond is

Answer 17

someone whose sex is not known

Question 18

what if the baby of a RH - mom is Rh +

Answer 18

doctors give her chemicals to ssuppress the anitgens-they protect the +fetal cells

Question 19

what happens when antigen and antibodies react

Answer 19

the antibodies clump the antigens together and make blood clots- if a red blood cell is broken, it can release toxic reactions

Question 20

who won nobel prize for resesarch on blood groups

Answer 20

landsteiner

Question 21

agglunates def

Answer 21

cells clot together

Question 22

how does blood typing work

Answer 22

mix blood with A B RH antigens and wichever clumps, is the type

Question 23

what is an autologous blood donation

Answer 23

you give blood before surgery, then use your own blood duing surgery and after

Question 24

duffy antigens and malaria

Answer 24

duffy negative dont get a lot of malaria parasites

Question 25

sickle cell anemia is a —-

Answer 25

pleiotrophy

Question 26

frizzled chicken

Answer 26

pleiotrphy

Question 27

red heads have freckles

Answer 27

gene linkage

Question 28

hiumilayan rabbit

Answer 28

multifactoriL

Question 29

arctic hare and arctic fox

Answer 29

multifactorial

Question 30

soil ph changes flower colo

Answer 30

multifactorial

Question 31

gene linkage violates’ mendel’s law of

Answer 31

independent assortment- which says that genes dont affect other genes

Question 32

whats nondisjunction

Answer 32

incorrect seperation

Question 33

is nondisjunction in meiosis 1 or 2 more importatn

Answer 33

1 cuz it affects the rest of the process

Question 34

trisomy 13

Answer 34

pataus syndromw- 3 months survival-cleft lip

Question 35

trisomy 18

Answer 35

edwards syndrome - 6 months survival rate

Question 36

extra Y

Answer 36

Extra Y chromsome-cognitive disabilities , aggressive and tall

Question 37

trisomy 21

Answer 37

down syndrome-cognitive disabilities, different physical features

Question 38

extra X

Answer 38

Kilefelltes syndrome- looks female but is a male