Mendelian Genetics/Chromosomes

Question 1

Particulate Inheritance

Answer 1

Characteristics determined by genes

Question 2

4 concepts of Mendel’s Model

Answer 2

Alleles are alternatives of a gene

2 alleles inherited (1 from mom, 1 from dad)

Dominant and recessive alleles

2 principles of hereditary

Question 3

2 Principles of Hereditary

Answer 3

Law of Segregation

Law of Independent Assortment

Question 4

Law of Segregation

Answer 4

Each gamete gets 1 allele

Question 5

Law of Independent Assortment

Answer 5

Action of random assortment

Question 6

Law of Segregation (Cross)

Answer 6

Monohybrid

Question 7

Law of Independent Assortment (Cross)

Answer 7

Dihybrid

Question 8

Phase of Law of Segregation

Answer 8

Anaphase 1

Question 9

Phase of Law of Independence

Answer 9

Metaphase 1

Question 10

LOS (Ratio)

Answer 10

3:1

Question 11

LoIA (ratio)

Answer 11

9:3:3:1

Question 12

Monohybrid cross looks at…

Answer 12

1 trait

Question 13

Monohybrid cross deteemines…

Answer 13

Dominance of the alleles

Question 14

Dihybrid Cross looks at..

Answer 14

2 independent traits

Question 15

Explain ratio of dihybrid crosses

Answer 15

9- hetero/homo dominant

3- dom for 1, rec for other

3- dom for 1, rec for other

1- homo rec for both

Question 16

Multiplication Rule predicts…

Answer 16

combined probability of 2 independent events

Question 17

Multiplication Rule key word

Answer 17

“AND”

Question 18

Addition Rule predicts…

Answer 18

combined probability of MUTUALLY EXCLUSIVE events

Question 19

Addition Rule key word

Answer 19

OR

Question 20

Morgan Experiment

Answer 20

Crossed male white eye fly with red eye female

F2 gen: no white eye female. white eye grandchild was male

Question 21

Morgan Experiment

Answer 21

Crossed male white eye fly with red eye female

F2 gen: no white eye female. white eye grandchild was male

Question 22

Morgan Conclusion

Answer 22

Eye colour for flies was sex linked

On X chromosome

Question 23

X0 system

Answer 23

Only 1 sex chromosom

Insects

X

Question 24

ZW system

Answer 24

ovum determines sex

Question 25

ZW stystem males

Answer 25

ZZ

Question 26

ZW stystem males

Answer 26

ZZ

Question 27

ZW system femalea

Answer 27

ZW

Question 28

ZW system femalea

Answer 28

ZW

Question 29

Haploid-Diploid system males

Answer 29

Haploid

Question 30

Haploid-Diploid System females

Answer 30

Diploid (2n)

Question 31

Haploid-Diploid System females

Answer 31

Diploid (2n)

Question 32

X0 system males

Answer 32

X

Question 33

X0 system males

Answer 33

X

Question 34

X0 system females

Answer 34

XX

Question 35

X0 system females

Answer 35

XX

Question 36

X-inactivation

Answer 36

One X chromosome in females condense and becomes inactive

Question 37

X linked genes

Answer 37

genes on X chromosome

Question 38

Types of X linkage

Answer 38

Hemizygous Homozygous

Question 39

Hemizygous

Answer 39

Males carry 1 X Either dominant or recessive, no hetero

Question 40

Homozygous

Answer 40

Females carry 2 X's Recessive alleles can be masked by other X if its dominant

Question 41

how are Recombinant chromosomes madw

Answer 41

Non sistee chromatids cross over

Question 42

Distant genes are...

Answer 42

not inherited together NO LINKAGE

Question 43

Linked genes

Answer 43

Adjacent genes are inherited together

Question 44

Which genes are likely to be assorted independently

Answer 44

Genes that are too far More likely to be recombinant chromosomes

Question 45

Complete linkage (parental genotype)

Answer 45

100%

Question 46

Unlinked linkage (parental genotype)

Answer 46

50%

Question 47

Complete linkage (recombination genotype)

Answer 47

0% no recombinant

Question 48

unlinked linkage (recombination genotype)

Answer 48

50% some recombinant

Question 49

Complete linkage description

Answer 49

100% parental genotype gene inherited as a unit Same chromosome

Question 50

Inomplete linkage description

Answer 50

50%-100% parental genotype Far apart on same chromosome

Question 51

Unlinked linkage description

Answer 51

0-50% parental genotype Different chromosomes