science genetics review good luck!
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SCIENCE Genetics Review Good Luck!. #1 What do we call the passing of traits from parents to offspring ?. Probability Recessive. Heredity. #2 Examples of alleles are _________?. round and wrinkled for seed shape Male and female - PowerPoint PPT PresentationTRANSCRIPT
SCIENCE
Genetics Review
Good Luck!
#1 #1 What do we call the passing of What do we call the passing of traits from parents to offspringtraits from parents to offspring??
Probability
Recessive
Heredity
#2 #2 Examples of alleles are Examples of alleles are _________?_________?
round and wrinkled for seed shape
Male and female
Blue eyes and brown hair
,,,
#3 #3 Chromosomes contain ____.Chromosomes contain ____.
anthers
many genes
proteins
#4#4 If you cross a Bb with a bb, what If you cross a Bb with a bb, what are the possible genotypes?are the possible genotypes?
(make a Punnett square)(make a Punnett square)
All BB
All bb
The Great Compromise
50% Bb and 50% bb
All Bb
#5 For the Punnett square you just did, #5 For the Punnett square you just did, what is the phenotype of the what is the phenotype of the
offspring?offspring?(If B = black and b = brown)(If B = black and b = brown)
All Black
1/2black,1/2 brown
All Brown
#6 #6 A normal human sex cell has A normal human sex cell has how many chromosomes ?how many chromosomes ?
The same number of chromosomes as every other cell
Twice the number of chromosomes as every other cell
Half the number of chromosomes as every other cell
#7#7 What does Heterozygous means? What does Heterozygous means?
Alleles are the Same
Alleles are Different
#8#8 Who is known as the Who is known as the ““Father of Father of GeneticsGenetics””??
Mendel
Punnett
Newton
“FATHER OF GENETICS”
#9#9 What name is given to the set of What name is given to the set of instructions for a characteristic?instructions for a characteristic?
Gene
DNA
Chromosome
#10#10 Homozygous means? Homozygous means?
Alleles are the Same
Alleles are Different
#11#11 Meiosis results in the production of Meiosis results in the production of ______________??
Sex cells
Cells with the half the number of chromosomes
All of the above
12. 12. What symbol is used to What symbol is used to
represent males in a pedigreerepresent males in a pedigree??
circle
diamond square
13. In the pedigree above, how do 13. In the pedigree above, how do
you know who has the traityou know who has the trait??
They are filled in
They are all male
They are all female
14. 14. In the pedigree above, how In the pedigree above, how many siblings does individual 1 many siblings does individual 1 have?have?
5
2 4
1
#15#15 All of an individual’s alleles are All of an individual’s alleles are known as their _________known as their _________??
Pedigree
Phenotype
Genotype
#16#16 What are chromosomes?What are chromosomes?
The same thing as Alleles
Organized structures of DNA
#17#17 How many sets of instructions does an How many sets of instructions does an individual have for each traitindividual have for each trait??
3
1
2
#18#18
a) Complete this punnett square.a) Complete this punnett square.Which of the following best Which of the following best describes your results?describes your results?
3 purple:1 white
2 purple:2 white
1 purple:3 white
4 purple:0white