bio quiz #9 qt2

Question 1

genetics

Answer 1

branch of biology dealing with the genes and heredity

Question 2

heredity

Answer 2

whats passed down

Question 3

genes

Answer 3

bits of dna on chromosomes

Question 4

of genes in a trait

Answer 4

2, 1 from dad and 1 from mom

Question 5

trait

Answer 5

feature or characteristic

Question 6

dominant gene

Answer 6

always seen in population, represented by a capital letter

Question 7

recessive genes

Answer 7

overpowered by dominant genes, represented by lowercase letter

Question 8

how can you inherit a recessive gene

Answer 8

only if you receive from both

Question 9

alleles

Answer 9

different forms of a gene on a homologous chromosome

Question 10

homologous chromosome

Answer 10

match up trait for trait (not identical)

Question 11

alleles

Answer 11

options/possibilities for genes

Question 12

who is gregor mendel

Answer 12

Australian monk who worked with pea plants

Question 13

what is gregor mendels nickname

Answer 13

father of genetics

Question 14

how many plants did gregor mendel have

Answer 14

28,000 plants in a 10 year span

Question 15

why were the pea plants so easy to grow and ‘breed’

Answer 15

favorable material, self pollination, discontinuous traits, large numbers of offsprings,

Question 16

what is self pollination

Answer 16

creation of pure strains and cross pollination possible (variety)

Question 17

discontinuous traits

Answer 17

2. contrasting forms, no in between, you have it or you dont

Question 18

female gamete

Answer 18

egg

Question 19

male gamete

Answer 19

sperm (pollen)

Question 20

X represents

Answer 20

sex

Question 21

gregor mendel never uses gene, he uses _____

Answer 21

factor

Question 22

law of dominance

Answer 22

one gene can mask another gene (dom and recess)

Question 23

phenotype

Answer 23

the appearance of the organism in words/ description

Question 24

genotype

Answer 24

the arrangement of genes

Question 25

homozygous dominant

Answer 25

FF

Question 26

homozygous recessive

Answer 26

ff

Question 27

heterozygous

Answer 27

(hybrid) Ff (mutt)

Question 28

law of segregation

Answer 28

in gamete formation, genes are seperated

Question 29

rule for # of gametes

Answer 29

2n (n= number of hybrids)

Question 30

law of independent assortment

Answer 30

in gamete formation,genes separate independent of each other

Question 31

exception

Answer 31

linkage (blonde hair blue eyes) (red hair freckles)