SEX RELATED INHERITANCE

Question 1

traits that are limited to only one sex

Answer 1

SEX-LIMITED TRAITS

Question 2

sex-limited traits are usually

Answer 2

AUTOSOMAL

Question 3

is a good example of a sex-limited trait that is exclusively exhibited among females.

Answer 3

LACTATION

Question 4

are autosomal traits that are influenced by sex. If a male has one recessive allele, he will show that trait, but it will take two recessive for the female to show that same trait. One such gene is baldness.

Answer 4

SEX-INFLUENCED TRAITS

Question 5

are genes found either on X or Y chromosomes which are inherited differences among male and a female.

Answer 5

SEX-LINKED GENES

Question 6

________________ determined by an X-linked gene when an X chromosome takes control. On the other hand, the so called Y-linked genes are those located on the Y chromosome.

Answer 6

SEX-LINKED TRAITS

Question 7

The X chromosome is larger than the Y chromosome

Answer 7

X-LINKED INHERITANCE

Question 8

If the mutated gene is present in the Y chromosome, then this is referred to as

Answer 8

Y-LINKED INHERITANCE

Question 9

An example of an X-linked trait is a rare genetic disorder in which a person lacks enough blood-clotting proteins caused by a change in one of the genes. Since this phenomenon is sited on the X chromosome, females identified to have affected two X chromosomes cause the disorder. But if there is only one chromosome affected, the female individual is referred to as “carrier” of the disorder.

Answer 9

HEMOPHILIA

Question 10

Is a Y-linked trait controlled by a Y chromosome and characterized by hairy ear in which are expressed in males alone. This human condition can be inherited from a father who has the disorder, to his sons who, in turn, will pass it on to their sons.

Answer 10

HYPERTRICHOSIS PINNAE AURIS

Question 11

are at much greater risk for inheriting sex-disorders because they only inherit one X, so if the X has the allele for the disorder, they will become affected.

Answer 11

MALES

Question 12

who is at greater risk for inheriting sex-linked disorders?

Answer 12

MALES

Question 13

is a genetic representation of a family tree that diagrams the inheritance of a trait or disease though several generations.

Answer 13

PEDIGREE

Question 14

PARTS OF A PEDIGREE

Answer 14

• SHAPES
• LINES
• FILLING
• IDENTIFYING INDIVIDUALS

Question 15

males (pedigree)

Answer 15

squares

Question 16

females (pedigree)

Answer 16

circles

Question 17

connect breeding couples (pedigree)

Answer 17

horizontal lines

Question 18

connect parents to children (pedigree)

Answer 18

vertical lines

Question 19

means death (pedigree)

Answer 19

diagonal line

Question 20

means the individual has the trait (pedigree)

Answer 20

shading

Question 21

means they carry the gene called a “carrier” (pedgree)

Answer 21

half-shading

Question 22

means the individual does not have the trait (pedigree)

Answer 22

no shading

Question 23

show generations (pedigree)

Answer 23

roman numerals

Question 24

assign an individual to a generation and birth order (pedigree)

Answer 24

identifying individuals