Patterns of heredity review
Sponsored Links
This presentation is the property of its rightful owner.
1 / 41

Patterns of HeredityReview PowerPoint PPT Presentation


  • 52 Views
  • Uploaded on
  • Presentation posted in: General

Patterns of HeredityReview. 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.

Download Presentation

Patterns of HeredityReview

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Patterns of HeredityReview


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


What did Gregor Mendel use to conduct his experiment?

Gardenpeas


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?

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


______ is anything that can cause a mutation

Mutagen


What is an example of a sex-link trait?

  • Hemophilia

  • Color-blindness

  • Baldness


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

Polygenic inheritance


In a pedigree, how is death notated?

  • 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

Aneuploidy


Body chromosomes; pairs 1-22 are called _____

Autosomes


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

Nondisjunction


_____ is a chart where the chromosomes are arranged in their homologous pairs

Karyotype


What would be an internal factor that can influence gene expression?

Hormones


An individual with the genotype IAifor their blood type would have what blood type?

A blood type


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

  • Size,

  • Banding Patterns,

  • Centromere location


How many 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

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?

BloodTypes


How many chromosomes does a human that has Trisomy 21 have?

47


A normal male karyotype would contain ____ as the sex chromosomes.

XY


Mutation that occurs when one chromosome of a pair is missing is called _____

Monosomy


Give an example of a genotype that would represent a carrier female

XBXb


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?

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?

Males – squares

Females - circles


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

Incomplete dominance


What do the roman numerals represent that are labeled on a pedigree?

Generation numbers


How many autosomes does a human have?

44 or 22 pairs


A normal female 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.


  • Login