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 What do we call tWhat do we call two forms of the wo forms of the same genesame gene??

Alleles

Chromosomes

Sex cells

,,,

#3 #3 Genes are found on ____.Genes are found on ____.

Alleles

Chromosomes

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 this Punnett square, what is the #5 For this Punnett square, what is the phenotype of the offspring?phenotype of the offspring?(If B = black and b = brown)(If B = black and b = brown)

1/2black,1/2 brown

All Black

All Brown

#6 #6 A normal human sex cell has A normal human sex cell has how many chromosomes ?how many chromosomes ?

46

22

23

#7#7 What does Heterogenous means? What does Heterogenous means?

Same

Different

#8#8 Who is known as the “Father of Who is known as the “Father of Genetics”?Genetics”?

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?

Same

Different

#11#11 Humans produce sex cells through a Humans produce sex cells through a process called process called ??

Mitosis

Binary fission

Meiosis

12. 12. In the pedigree above, how In the pedigree above, how

many females are shownmany females are shown??

5

8 9

13. In the pedigree above, how 13. In the pedigree above, how

many females have THE diseasemany females have THE disease??

5

8 9

14. 14. In the pedigree above, how In the pedigree above, how many children do parents 1 and 2 many children do parents 1 and 2

havehave??4

3 6

1 2

#15#15 TheThe inherited combination of inherited combination of alleles is known as the offspring’s alleles is known as the offspring’s ??

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 for How many sets of instructions for each characteristic do offspring receive each characteristic do offspring receive from EACH parentfrom EACH parent??

3

2

1

#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