Ch 11 Test

Question 1

Mendel 200

Answer 1

Law of segregation

Question 2

Mendel 300

Answer 2

Blending

Question 3

The outward appearance

Genetics 1 100

Answer 3

Phenotype

Question 4

Mendel used this organism to study how traits are inherited

Answer 4

Peas

Question 5

Prophase 1

Answer 5

• spindle fibers start forming and centrosomes bine to opposite poles
• nuclear envelopes and nucleolus disappear
• chromatin coiled up to become chromosomes
• pairs of homologous chromosomes lie next to each other in tetrad form
• crossing over occurs between the non sister chromtids

Question 6

Metaphase 1

Answer 6

-homologous pairs of chromosomes line up at metaphase plate, spindle fibers from opposite poles grab to one of the partners

Question 7

Anaphase 1

Answer 7

-homologous pairs separate (sister chromatids remain together)

Question 8

Telophase 1

Answer 8

-chromosomes finish journey

RESULT: 2 haploid cells

Question 9

Prophase 2

Answer 9

-spindle reforms the nuclear envelope, nuclear envelop & nucleous disappear

Question 10

Metaphase 2

Answer 10

-chromosomes line up on metaphase plate

Question 11

Anaphase 2

Answer 11

Sister chromatids separate

Question 12

Telophase 2

Answer 12

-nuclear envelope forms

Question 13

Homologous pairs of chromosomes line up at metaphase plate, spindle fibers from, opposite poles grab to one of the partners

What phase

Answer 13

Metaphase 1

Question 14

Spindle reforms the nuclear envelope, nuclear envelope disappears.

What phase

Answer 14

Prophase 2

Question 15

Nuclear envelope forms

Answer 15

Telophase 2

Question 16

Sister chromatids separate

What phase

Answer 16

Anaphase 2

Question 17

Homologous pairs separate (sister chromatids remain together)

What phase

Answer 17

Anaphase 1

Question 18

What’s the order of the phases

Answer 18

Prophase 1
Metaphase 1
Anaphase 1
Telophase 1 
Prophase 2
Metaphase 2
Anaphase 2
Telophase 2

Question 19

Crossing over occurs between tetrads

Answer 19

Prophase 1

Question 20

A diploid cell that enters mitosis with 16 chromosomes is 16 will produce _____ daughter cells. Each of these daughter cells will have _____ chromosomes

Answer 20

2

16

Question 21

What is a diploid cell?

Answer 21

A cell consisting of two sets of chromosomes

Question 22

What is a haploid cell

Answer 22

A cell with a single set of chromosomes

Question 23

A diploid number of chromosomes is always ____

Answer 23

Even

Question 24

In a parent plant with the allele pair Gg, what is the probability that one gamete will contain the G allele?

Answer 24

50%

Question 25

A form of a gene is an

Answer 25

Allele

Question 26

A tip to remember homozygous:

A gay couple are called homo bc they are the same

Answer 26

👏🏽

Question 27

State the principle of dominance

Answer 27

Some alleles are dominant and others are recessive

Question 28

What is the result of segregation

Answer 28

Each gamete carries only one allele for each gene

Question 29

What is the end result of meiosis

Answer 29

Four haploid cells

Question 30

What is meiosis

Answer 30

Type of cell division that creates gametes (sex cells)

Question 31

How does meiosis start

Answer 31

With 2 pairs of homologous chromosomes and four chromosomes