Interior House Painters - Plainview Home Makeover - New York
HW - Plainview
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Mendelian Genetics.notebook 1 May 11, 2018 May 187:23 AM How is it possible for a child to have blonde hair, if both of his/her parents have dark hair? AIM: How can we determine the Probability of a trait being expressed in the offspring? Do Now: HW 5/11 Day 3 Complete Castlelearning 5 May 15 7:44 PM • discovered basics heredity Mendel • studied Pea Plants • each trait is controlled by "Two Factors" (alleles), one from each parent Gregor Mendel (1800's): Father of Genetics of
Transcript of HW - Plainview
Mendelian Genetics.notebook
1
May 11, 2018
May 187:23 AM
How is it possible for a child to have blonde hair, if both of his/her parents have dark hair?
AIM: How can we determine the Probability of a trait being expressed in the offspring?Do Now:
HW5/11Day 3 Complete Castlelearning 5
May 15 7:44 PM
• discovered basics heredity
Mendel • studied Pea Plants
• each trait is controlled by "Two Factors" (alleles), one from each parent
Gregor Mendel (1800's): Father of Genetics
of
Mendelian Genetics.notebook
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May 11, 2018
May 14 8:17 PM
Traits that Gregor Mendel ObservedTraits
May 14 8:17 PM
Mendels Law of Dominance
Parent Pea Plants F1 Pea Plants
Tall Pea Plant X Short Pea Plant All plants are Tall
Geen Pea Plant X Yellow Pea Plant All plants are Green
The trait that was expressed was described as dominant, while the trait that did not show up was called recessive
When organisms pure for a trait are crossed, all their offspring will show the dominant trait
Mendelian Genetics.notebook
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May 11, 2018
May 14 8:18 PM
Mendel's pea plants were pure for a trait
Tall Plant (TT) X short plant (tt) All offspring are Tall Plantshomozygous(pure): • both alleles for a certain trait are the same EX: TT or ttheterozygous (hybrid): • alleles for a certain trait are different EX: Tt
May 187:24 AM
Phenotype: the physical appearance of an organism based on its genetic makeup
The phenotype of Ashton's hair is brown
Genotype:The genetic makeup of an organism
genotype can be BB or Bb
B= brown hairb=blonde hair
Ashton's
Mendelian Genetics.notebook
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May 11, 2018
May 15 8:04 PM
For a recessive trait to be expressed,both recessive alleles must be present in an individual
B= brown hairb=blonde hair
She must have a genotype of "bb"
add to notes
BB= Brown HairBb= Brown Hair
May 16 8:10 AM
Mendels Law of Segregation:During the formation of gametes , the two alleles responsible for a trait separate from each other, so that each gamete contains only one allele for each trait
Bb
Bb
Let B= brown hairLet b= blonde hair
possible gametesB
b
possible gametes
B
b
Mendelian Genetics.notebook
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May 11, 2018
May 15 8:10 PM
Punnett Square: a diagram used to determine the probability of possible offspring that will come from 2 parents
Example: Pea Plant TT X tt
T T
t
t
What is the phenotype of all the offspring?
What is the genotype of all the offspring?
Let T= Tall allele Let t= short allele
May 16 10:31 AM
Trait Dominant Recessive seed coat round (R) wrinkled (r)
pod color green (G) yellow (g)
height of plant tall (T) short (t)
1. Rr X RRb. genotype:
c. phenotype :
Homozygous orHeterozygous ?
Mendelian Genetics.notebook
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May 11, 2018
May 107:02 PM
What is a pedigree?. A family tree• A chart that shows the way in which traits are passed down from
generation to generation
Attachments
The_Gene.asf
