Sex linked , sex influenced traits & Family pedigree | Baamboozle - Baamboozle

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Sex linked & sex influenced traits

Study Slideshow

1-Which is a mutation? A-a factor that causes all human disease B-any gene that is harmful C-a permanent change in a gene D-a piece of recombinant DNA

C-a permanent change in a gene

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2- Sex chromosome X is ……………………… than Y

longer

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3-Females have ………………… sex chromosomes.

XX

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4-Males have ………………… sex chromosomes.

XY

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5- In baldness, the male and female with the same genotype have ……………. phenotype.

different

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6-Traits (genes) located on the sex chromosomes (X) are called ......................

Sex linked traits

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7-From examples of mutation which is a sudden change in the gene a- Color blindness b- Hemophilia c-both

c-both

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8-Explain : Baldness is common in males not in females.

Because male sex hormone supports the appearance of baldness But female sex hormone prevents the appearance of baldness.

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9-Explain : -Color blindness is common in males and rare in females

Because female needs 2 recessive genes of color blindness carried on her two sex chromosome XX but male needs only one.

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10-………………. is a chart used to follow the inheritance of a certain trait within a family.

Family pedigree

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11-Which tool that scientists use to analyze the genetics of a family is shown below? A-a pedigree B- a phenotype C- genetic engineering D- a Punnett square

Family pedigree

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12-……Is a way to predict all the possible breeding outcomes A-a pedigree B- a phenotype C- a Punnett square

C- a Punnett square

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13-Who could a daughter inherit a sex linked allele from? a-Her mother only b-Her father only c-Either parent

c-Either parent

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14-An individual who is heterozygous for a recessive disorder is called a(n) ………. a-carrier b-pedigree c-autosome d-affected

a-carrier

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15-Who does a son inherit a sex-linked allele from? a-His mother only b-His father only c-Either his father or mother

a-His mother only

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16-Colorblindness is a recessive x-linked disorder. Which genotype represents a male with normal vision?

C

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Sex linked , sex influenced traits & Family pedi ...