14.2 Human Genetic Disorders

Question 1

Changes in the genes DNA sequence can alter

Answer 1

Proteins and phenotypes

Question 2

There is a ____ basis for genetic disorders

Answer 2

Molecular

Question 3

How many types of genetic disorders are there

Answer 3

3

Question 4

What are the three types of genetic disorders

Answer 4

Autosomal disorders chromosomal disorders and sex linked disorders

Question 5

Autosomal disorders

Answer 5

Genetic disorders In autosomes

Question 6

What are some examples of autosomal disorders

Answer 6

Sickle cell disease cystic fibrosis Albinism and Huntington’s disease

Question 7

Capillary

Answer 7

Narrowest blood vessel in the body

Question 8

What is Huntington’s disease caused by

Answer 8

A dominant allele for protein found in brain cells
Neurons breaking down

Question 9

What does Huntington’s disease cause

Answer 9

Mental deterioration uncontrollable movements

Question 10

When does Huntington’s disease usually appear

Answer 10

Middle-age

Question 11

Who is Huntington’s disease recessive or dominant

Answer 11

Dominant

Question 12

Chromosomal Disorders

Answer 12

Incorrect number/structure of chromosomes

Question 13

What are some examples of chromosomal disorders

Answer 13

Down syndrome turner syndrome and Klinefelter syndrome

Question 14

Down syndrome is also known as

Answer 14

Trisomy 21

Question 15

Trisomy

Answer 15

Three copies of a chromosome

Question 16

What is the most common trisomy

Answer 16

Down syndrome

Question 17

What is down syndrome caused by

Answer 17

Three copies of chromosome 21

Question 18

What does down syndrome cause

Answer 18

Mental retardation and high frequency of birth defects such as height face and heart problems

Question 19

What is turner syndrome caused by

Answer 19

Nondisjunction of the X chromosomes

Question 20

What does turner syndrome cause

Answer 20

Women to only inherit one X-chromosome which causes their sex organs to not to develop properly during puberty

Question 21

Woman with turner syndrome are

Answer 21

Sterile

Question 22

Turner syndrome is a

Answer 22

Monosomic condition

Question 23

Monosomic

Answer 23

Missing a chromosome

Question 24

What is Klinefelters syndrome caused by

Answer 24

Nondisjunction in males which causes them to have an extra X chromosome

Question 25

What does Klinefelter syndrome cause

Answer 25

Men are not able to reproduce

Question 26

Because no babies have been born without the X chromosome scientists have concluded that

Answer 26

It contains genes in this area for development and survival

Question 27

Nondisjunction

Answer 27

One homologous chromosomes failed to separate and anaphase one

Question 28

How many types of nondisjunction are there

Answer 28

Two

Question 29

Nondisjunction is more common in

Answer 29

Older females

Question 30

What are the two different types of nondisjunction

Answer 30

Nondisjunction in meiosis one and Nondisjunction in meiosis two

Question 31

What does nondisjunction in meiosis one result in

Answer 31

2 gametes: n+1 2 gametes: n - 1

Question 32

N

Answer 32

A single set of chromosomes

Question 33

Nondisjunction in meiosis two results in

Answer 33

1 gamete: n + 1 1 gamete: n - 1 2 gametes: n

Question 34

What are examples of sex Linked disorders

Answer 34

Hemophilia and red green color blindness 

Question 35

Hemophilia

Answer 35

Blood clotting disorder which causes people to not blood clot when they need to

Question 36

What is hemophilia caused by

Answer 36

A missing gene

Question 37

Hemophiliac is more common in

Answer 37

Males

Question 38

Red green color blindness

Answer 38

Cannot see red or green

Question 39

Red green color blindness is more common in

Answer 39

Males

Question 40

Albinism

Answer 40

disorder which causes your skin, hair,etc. cells to not produce melanin

Question 41

Is Albinism recessive or dominant

Answer 41

recessive