Erikson Freshman Gbs Genetics Unit Test Help

Front 1

How many total chromosomes are presented in a normal human karyotype?

Back 1

46

Front 2

List the four phases of mitosis in order

Back 2

Prophase
metaphase
anaphase
telophase

Front 3

which is the name of the resting and growth phase where the cell spends most of its time?

Back 3

Interphase

Front 4

which type of cell division occurs in skin, hair, and tissue cells?

Division of the cell nucleus.

Back 4

mitosis

Front 5

Which type of cell division produces eggs and sperm?

Back 5

Meiosis

Front 6

How many chromosomes are present in normal human sperm and egg?

Back 6

23

Front 7

a division of cytoplasm of a cell

Back 7

cytokinesis

Front 8

condition in which cells grow uncontrollably

Back 8

cancer

Front 9

A nuclear envelope forms around chromosomes

Back 9

telophase

Front 10

sister chromatids separate

Chromosomes move to the opposite sides of the cell

Back 10

anaphase

Front 11

Chromosomes line up in the center of the cell

Back 11

metaphase

Front 12

the genetic material condenses and chromosomes become visible.

Back 12

prophase

Front 13

the cytoplasm divides

Back 13

cytokinesis

Front 14

crossing over occurs between tetrads

Back 14

Prophase 1

Front 15

PAIRED HOMOLOGOUS CHROMOSOMES line up across the center of the cell

Back 15

metaphase 1

Front 16

spindle fibers pull each homologous chromosome pair toward an opposite side end of the cell

Back 16

anaphase 1

Front 17

chromosomes line up "straight file" at the center of the cell

Back 17

metaphase 2

Front 18

How many pairs of autosomes are there in human body cells?

Back 18

22

Front 19

a technique used to remove amniotic fluid from the uterus of a pregnant mother is known as ____a_____. A ____b____ can then be constructed to determine any chromosomal disorders, or to simply determine the sex or the unborn child.

Back 19

A. amniocentesis

B. karyotype

Front 20

a picture of an unborn child can be used to determine if there are any abnormalities. One technique that used SOUND WAVES is called_______________.

Back 20

untrasonography

Front 21

If an individual has ______ _________, then they have an extra set if chromosomes at chromosome pair #21.

Back 21

Down Syndrome

Front 22

If a child only has one X in their sex chromosomes, then it has the disorder known as _______________

Back 22

Turner's Syndrome

Front 23

If chromosomes do not separate during meiosis, this is known as _____________________.

Back 23

Non disjunction

Front 24

define phenotype

Back 24

physical appearance

Front 25

define genotype

Back 25

genes

Front 26

define dominant

Back 26

form of allele that prevents expression of the other

Front 27

define recessive

Back 27

form of an allele that must be homozygous in order for that to be seen

Front 28

DNA stands for ________________________________. It is found in the __________ of the cell and was discovered by _________ and __________.

Back 28

deoxyribonucleic acid

nucleus

Watson and Crick

Front 29

Name the three molecules that make up DNA

Back 29

1. deoxyribose
2. phoshate
3.nitrogen bases

Front 30

What makes up the sides of DNA?

Back 30

deoxyribose and phoshate