Genetics review
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Genetics Review. Mendel Punnett Squares Complex inheritance Human Genetics. Science of how traits are passed on from one generation to the next. HeredityOr Genetics. Science of how traits are passed on from one generation to the next. Genetics. Father of Genetics is:.

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Genetics review

Genetics Review

Mendel

Punnett Squares

Complex inheritance

Human Genetics


Heredity or genetics

  • Science of how traits are passed on from one generation to the next

HeredityOr Genetics


Genetics

  • Science of how traits are passed on from one generation to the next

Genetics


Mendel or hooke

  • Father of Genetics is:

MendelorHooke


Mendel

  • Father of Genetics is:

Mendel


Fruit flies or peas

  • What kind of organisms did Mendel work with?

Fruit fliesorPeas


Genetics review

  • What kind of organisms did Mendel work with?

Peas


F 1 or p 1

Parent generation

F1orP1


P 1 stands for parent

Parent generation

P1 Stands for Parent


F 1 and f 2 or g 1 and g 2

  • First and second generation of offspring

F1 and F2orG1 and G2


F 1 and f 2 f filial latin for offspring

  • First and second generation of offspring

F1 and F2F = “Filial” Latin for Offspring


Recessive dominant

  • An allele that hides the presence of another allele

RecessiveDominant


Dominant

  • An allele that hides the presence of another allele

Dominant


Recessive incomplete

  • An allele that is hidden by the presence of another allele

RecessiveIncomplete


Recessive

  • An allele that is hidden by the presence of another allele

Recessive


Complete dominace or segregation

  • Why did recessive traits disappear in the F1 generation and return in the F2 generation?

COMPLETE DOMINACE OR SEGREGATION


Complete dominace and segregation

  • Why did recessive traits disappear in the F1 generation and return in the F2 generation?

Complete DominaceAND Segregation


Explanation

  • Complete Dominance – Parent generation were pure Domiant and Recessive for traits: TT x tt so F1 generation all were heterozygous: Tt and only showed the dominant trait so the recessive trait “disappeared” or was hidden.

  • Segregation – using a Punnett square we can see that when the F1 generation are crossed with each other: Tt x Tt, ¼ of the offspring will have the recessive trait “reappear” because during meiosis – alleles separate or segregate and offspring get only one allele from Mom and one allele from Dad

Explanation


Punnett squares

Punnett Squares


Dominant or recessive

  • T

Dominantor Recessive


Dominant capital letter

  • T

Dominant(capital letTer)


Homozygous or heterozygous

  • tt

Homozygousor heterozygous


Homozygous letters identical

  • tt

Homozygous(letters identical)


Homozygous or heterozygous1

  • Ll

Homozygous or Heterozygous


Heterozygous different cases one lower and one upper

  • Ll

Heterozygous (Different cases – one lower and one upper)


Bb bb or bb bb

If Black is dominant what are 2 possible genotypes for black cats?

BB bbor Bb BB


Bb or bb both will look black because both have at least one dominant allele

If Black is dominant what are 2 possible genotypes for black cats?

BB or Bb both will look Black because both have at least one dominant allele


Short medium

  • What is the phenotype for this plant: tt, Tall is dominant to short

ShortMedium


Short

  • What is the phenotype for this plant: tt, Tall is dominant to short

short


Tt x tt or tt x tt

  • What are the genotypes of these parents:

  • Heterozygous for tall x Homozygous for short

Tt x ttor TT x tt


Tt x tt

  • What are the genotypes of these parents:

  • Heterozygous for tall x Homozygous for short

Tt x tt


Genotype or phenotype

  • The appearance of an organism

Genotypeor Phenotype


Phenotype ph ysical appearance

  • The appearance of an organism

Phenotype - Physical Appearance


Ww or gg

  • What is the genotype of a plant that is white, when dominant trait is Green?

wwor gg


Genetics review

  • What is the genotype of a plant that is white, when dominant trait is Green?

gg The dominant trait determines the letter used, recessive traits are always shown in lower case of dominant letter


What genotype goes here

Rr

R

r

R = round,

r = wrinkled

Cc?

What genotype goes here?


What genotype goes here rr

Rr

R

r

Cc?

What genotype goes here? rr


What phenotype goes here

Rr

R

r

Cc?

What Phenotype goes here?


What phenotype goes here wrinkled

Rr

R

r

Cc?

What Phenotype goes here? wrinkled


What percent of offspring will be round

Rr

r

r

Cc

What Percent of offspring will be Round?


What percent of offspring will be round 50

Rr

r

r

Cc

What Percent of offspring will be Round? 50%


Homozygous or heterozygous2

  • hybrid

Homozygous or heterozygous


Heterozygous

  • hybrid

heterozygous


Homozygous or heterozygous3

  • Pure genotype

Homozygous or Heterozygous


Homozygous

  • Pure genotype

Homozygous


Complex inheritance

Complex inheritance


Blood type or skin color

  • A trait with multiple alleles

Blood typeorskin color


Blood type a b o skin color has multiple genes and a whole range of in between phenotypes

  • A trait with multiple alleles

Blood type - A, B, o (skin color has multiple genes and a whole range of in between phenotypes)


Complete or incomplete

RR = red Rr= red rr=white

What kind of dominance?

Completeor incomplete


Complete

RR = red Rr= red rr=white

What kind of dominance?

Complete


Incomplete or co dominance

  • AA or AO = type A

  • BB or BO = type B

  • AB = typeAB

  • OO = typeO

  • What kind of dominance?

Incompleteor co-dominance


Co dominance

  • AA or AO = type A

  • BB or BO = type B

  • AB = typeAB

  • OO = typeO

  • What kind of dominance?

co-dominance


Codominance or incomplete

  • RR = redRr = orange

  • rr = yellow

  • What kind of dominance?

Codominance or incomplete


Incomplete

  • RR = redRr = orange

  • rr = yellow

  • What kind of dominance?

incomplete


A ab b o

  • Universal Donor

AAB B o


Genetics review

  • Universal Donor

o


A ab b o1

  • Can RECEIVE any type of blood

A AB B O


Genetics review

  • Can RECEIVE any type of blood

AB


Father mother

  • Determines the sex of the child

FatherMother


Father

  • Determines the sex of the child

Father


Sex chromosomes or autosomes

  • Chromosome pair numbers 1-22

Sex chromosomes or Autosomes


Autosomes

  • Chromosome pair numbers 1-22

Autosomes


Male or female

  • XY

Male or Female


Genetics review

  • XY

Male


X linked or y linked

  • Dad is not colorblind

  • Mom is colorblind

Xb

Xb

XBXb

XBXb

XB

Xby

y

Xby

X-linked or y-linked


X linked

  • Dad is not colorblind

  • Mom is colorblind

Xb

Xb

XBXb

XBXb

XB

Xby

y

Xby

X-linked


Pedigree or karyotype

  • Picture of chromosomes

Pedigree or karyotype


Karyotype

  • Picture of chromosomes

karyotype


Carrier nondisjunction

  • Homologous chromosomes do not separate

CarrierNondisjunction


Nondisjunction

  • Homologous chromosomes do not separate

Nondisjunction


Karyotype pedigree

  • Diagrams that show how genes are passed from generations

KaryotypePedigree


Pedigree

  • Diagrams that show how genes are passed from generations

Pedigree


Male female

Male female


Genetics review

Male


Has disease carrier

Has DiseaseCarrier


Has disease

Has Disease


3 copies 1 copy

  • Down Syndrome 21

3 copies 1 copy


3 copies

  • Down Syndrome 21

3 copies


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