Patterns of heredity review
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Patterns of Heredity Review. What mode of inheritance shows a blending of a trait?. Incomplete dominance. What is the sex of this individual?. Female. Who determines the sex of a child? . Father. Identify the disorder. Turner’s Syndrome. G.

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Identify the disorder
Identify the disorder.

  • Turner’s Syndrome

G


What did gregor mendel use to conduct his experiment
What did Gregor Mendel use to conduct his experiment?

Gardenpeas


List 2 environmental external factors that can influence gene expression
List 2 environmental (external) factors that can influence gene expression?

  • Temperature

  • Radiation

  • Light

  • Chemicals

  • Virus/Bacteria


Why do sex linked traits occur more often in males than females
Why do sex-linked traits occur more often in males than females?

  • Males are missing the part of the Y chromosomes that has these traits



What is an example of a sex link trait
What is an example of a sex-link trait? females?

  • Hemophilia

  • Color-blindness

  • Baldness


Inheritance is where more then one gene is controlling a trait
__________ inheritance is where more then ONE gene is controlling a trait

Polygenic inheritance


In a pedigree how is death notated
In a pedigree, how is death notated? controlling a trait

  • A slash through the symbol


The following pedigree shows individuals with blue eyes. Blue eyes are recessive to brown. What is the dad’s genotype?

I.

  • Bb

II.


Is an abnormal number of chromosomes
_____ is an abnormal number of chromosomes Blue eyes are recessive to brown. What is the dad’s genotype?

Aneuploidy


Body chromosomes pairs 1 22 are called
Body chromosomes; pairs 1-22 are called _____ Blue eyes are recessive to brown. What is the dad’s genotype?

Autosomes


Is the failure of the homologous chromosomes to separate during meiosis
_____ is the failure of the homologous chromosomes to separate during meiosis

Nondisjunction




An individual with the genotype i a i for their blood type would have what blood type
An individual with the genotype expression? IAifor their blood type would have what blood type?

A blood type


In a karyotype chromosomes are matched according to and
In a expression? karyotype, chromosomes are matched according to ________, _______, and_____

  • Size,

  • Banding Patterns,

  • Centromere location


How many autosomal chromosomes are present
How many expression? autosomal chromosomes are present?

  • 44


The following pedigree shows individuals with blue eyes. Blue eyes are recessive to brown. What is the sex of their oldest kid?

I.

  • boy

II.


Is a mutation that occurs when a segment of a chromosome breaks off and is reinserted backwards
_____ is a mutation that occurs when a segment of a chromosome breaks off and is reinserted backwards

Inversion


____ mutation causes an error in DNA that adds or deletes a single base that causes all the following amino acids to be affected

Frameshift mutation


What trait is an example of multiple alleles
What trait is an example of multiple alleles? single base that causes all the following amino acids to be affected

BloodTypes


How many chromosomes does a human that has trisomy 21 have
How many chromosomes does a human that has single base that causes all the following amino acids to be affectedTrisomy 21 have?

47


A normal male karyotype would contain as the sex chromosomes
A normal male single base that causes all the following amino acids to be affectedkaryotype would contain ____ as the sex chromosomes.

XY


Mutation that occurs when one chromosome of a pair is missing is called
Mutation that occurs when one chromosome of single base that causes all the following amino acids to be affected a pair is missing is called _____

Monosomy



When a chromosome breaks off joins another chromosome this mutation is called
When a chromosome breaks off & joins another chromosome, this mutation is called_____

Translocation


What type of inheritance has the phenotype of the heterozygous offspring showing BOTH traits of the homozygous parents?

Codominance


What type of inheritance is shown when the trait occurs more frequently in one sex than another
What type of inheritance is shown when the trait occurs more frequently in one sex than another?

Sex-Linked


Suppose you were looking at a pedigree and you saw an individual’s genotype was labeled “R?”. What does that genotype represent?

Dominant phenotype. But, you do not know if the other allele is dominant or recessive


What type of inheritance is exhibited when there are more than 2 possible alleles for a certain trait or phenotype?

Multiplealleles


A mother who is heterozygous for type A blood marries a man who is homozygous for B blood. What are the blood genotypes of the children?

  • 50% IAIB

  • 50% IBi


In pedigrees how are males and females represented
In pedigrees, how are males and females represented? who is homozygous for B blood. What are the blood genotypes of the children?

Males – squares

Females - circles


What type of inheritance pattern would you use a prime to notate the alternate form of an allele
What type of inheritance pattern would you use a prime (‘) to notate the alternate form of an allele?

Incomplete dominance



How many autosomes does a human have
How many pedigree?autosomes does a human have?

44 or 22 pairs


A normal female karyotype would contain as the sex chromosomes
A normal female pedigree?karyotype would contain ____ as the sex chromosomes.

XX


The following pedigree shows individuals with blue eyes. Blue eyes are recessive to brown. What is the mom’s genotype?

I.

  • bb

II.


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