(M) Non-Mendelian Genetics

Question 1

T or F. Non-mendelian genetics describes the inheritance of traits linked to single genes on chromosomes in nucleus

Answer 1

F (mendelian)

Question 2

Any pattern of inheritance in which traits do not segregate

Answer 2

Non-mendelian

Question 3

T or F. Non-Mendelian genetics are affected by several loci such as gene location (inside/outside the nucleus), chromosome placement, environmental factors, and variations in protein properties encoded by different gene alleles

Answer 3

T

Question 4

A condition when during the heterozygous condition the dominant allele does not completely overpower the recessive allele

Answer 4

Incomplete Dominance

Question 5

T or F. Codominance is a condition of blending of traits.

Answer 5

F (inc. dominance)

Question 6

What allele only partially mask the presence of recessive trait in the inc dominance?

Answer 6

dominant allele DUH

Question 7

What genetics is either allele is dominant or recessive; both allele are expressed/manifested

Answer 7

Codominance

Question 8

T or F. In codominance, multiple alleles is also applies

Answer 8

T

Question 9

T or F. The inheritance pattern of the ABO blood group exhibits Codominance only.

Answer 9

F (and multiple alleles also)

Question 10

6 genotypes of blood

Answer 10

AA, AO, BB, BO, AB, OO

Question 11

4 phenotypes in blood

Answer 11

A, B, AB, O

Question 12

3 alleles: in blood

Answer 12

A, B, O

Question 13

AKA silent genotype that will not produce an A and B antigen because it is always homozygous

Answer 13

type O

Question 14

the body will create an antibody against A and B but it can donate to whoever

Answer 14

Type O

Question 15

This blood types can be homozygous or heterozygous

Answer 15

A and B

Question 16

Inheritance pattern for traits that are controlled by more than one gene

Answer 16

Polygenic Inheritance

Question 17

T or F. In polygenic inherticance, there’s a transition of phenotype because multiple genes affects the inheritance of one trait

Answer 17

T

Question 18

T or F. Mother’s with lethal genes would mostly prefer to risk their offspring than resort to abortion.

Answer 18

F (abortion>high probability of still birth)

Question 19

Genes capable of causing death of organism carrying them

Answer 19

Lethal genes

Question 19

this displays family relationships and depict which relatives have specific phenotypes and sometimes genotypes

Answer 19

Pedigrees

Question 20

In incomplete dominance. what is the ratio of red: pink: white example?

Answer 20

1:2:1

Question 21

T or F: In incomplete dominance, there is a blending of trait

Answer 21

True

Question 22

In this nonmendelain genetics, there is no blending regardless of how the dominant allele do not overpower the recessive one

Answer 22

Codominance

Question 23

What is the homogeneous to heterogenous ratio of sickle cell anemia

Answer 23

2:2

Question 24

In codominance, if the parents both have sickle cell trait, how many children are:

• not affected
• has sickle cell trait
• has sickle cell anemia?

Answer 24

1, 2, 1

Question 25

T or F: Sickle cell trait = sickle cell anemia

Answer 25

False

Question 26

How does the ABO blood system present codominance?

Answer 26

A and B are both dominant in AB group (there’s no recessive)

Question 27

How does the sickle cell anemia exhibit codominance?

Answer 27

Sickle cell trait both have sickle cell tendencies and normal blood tendencies (there’s no recessive)

Question 28

Example of lethal genes

Answer 28

Tay Sachs and Huntington

Also achondroplasia

Question 29

If both parents have achondroplasia (heterogenous parents), what is the homogenous and heterogenous ratio of the offsprings?

Answer 29

2:2

Question 30

If both parents have achondorplasia (heterogenous parents), what is the number of those who:

• have normal height
• have achondroplasia
• die

Answer 30

1, 2, 1

Question 31

Is achondroplasia dominant or recessive?

Answer 31

Dominant

Question 32

If one of the parents has achondroplasia, what is the normal height to achondroplasia ratio?

Answer 32

1:1

Question 33

Achondroplasia is an example of which nonmendelian genetics?

Answer 33

Lethal gene