Unit 5 Study

Question 1

What’s makes body cells?

Answer 1

Mitosis

Question 2

What makes Gametes?

Answer 2

Meiosis

Question 3

What do Body cells do? (Mitosis)

Answer 3

For growth and damage fix

Question 4

How many [PMAT] in Mitosis and Meiosis?

Answer 4

(1) Mitosis
(2) Meiosis

Question 5

When do Chromosomes don’t cross over?

Answer 5

Prophase 2

Question 6

Alleles are the what?

Answer 6

A section on a chromosome

Question 7

Phenotype

Answer 7

Is observable expression of a genotype
(Ex) tall plant

Question 8

Genotype

Answer 8

A genotype is their sequence of DNA
(Ex) TT

Question 9

What moves Chromosomes?

Answer 9

Spindle fibers from centrioles

Question 10

Why doesn’t prophase 2 cross over?

Answer 10

Because allele can switch back if they cross over again.

Question 11

What’s called reduction devision?

Answer 11

Meiosis

Question 12

What’s called cell division?

Answer 12

Mitosis

Question 13

Homozygous

Answer 13

BB or bb

Question 14

Heterozygous

Answer 14

Bb

Question 15

Diploid

Answer 15

Refers to two sets of chromosomes

Question 16

Haploid

Answer 16

One set of chromosomes

Question 17

Locus

Answer 17

Position of a allele on a chromosome

Question 18

What do we do first when you have AaBb x AaBb and we want to find percent of bb

Answer 18

1) We make a punnet scare starting with just Aa and the other Aa.

2) Then we do the same but with bB.

Question 19

What CANT linked genes do?

Answer 19

Independently assort

Question 20

Sex chromosomes are…

Answer 20

X-linked

Question 21

Male

Answer 21

XY

Question 22

Female

Answer 22

XX

Question 23

X-linked recessive Female

Answer 23

X^h X^h

Question 24

X-linked with disease Male

Answer 24

X^h Y

Question 25

To show a recessive trait what must the genotype be?

Answer 25

Two lower case
Ex) oo or bb

Question 26

If a pedigree shows most males have the disease and it in half of the generations then..

Answer 26

It’s a sex linked dominant genotype

Question 27

If pedigree shows: less than half have the disease and both Female and Male have it

Answer 27

Autosomal recessive

Question 28

Males get what from dad and mom

Answer 28

Dad gives Y and Mom gives X

Question 29

Females get what form dad and mom

Answer 29

Get both X’s

Question 30

Multiple Genes

Answer 30

Means multiple of Genes needed to make one trait

Question 31

Non-nuclear (Mitochondrial) Inheritance

Answer 31

Means passed from mother

Question 32

Incomplete Dominace

Answer 32

1. Blending together
2. Heterozygous recessive
   (Ex) rr x yy = ry
   Shows both red and yellow= orange
3. Shows a third phenotype

Question 33

Codominance

Answer 33

1.Both Alleles are expressed equally
2.neither dominant or recessive

Question 34

How many h do females need?

Answer 34

2 because they have two X chromosomes so need 2 h to get hemophilia unlike males

Question 35

Homologous Chromosomes

Answer 35

Chromosomes that are exactly the same as parents

Question 36

[PMAT] 2 divides what?

Answer 36

Sister chromatids into 23 each

Question 37

Independent Assortment

Answer 37

Alleles of two different genes will independently move into two daughter cells, unless linked in one chromosome then they will be inherited together.