Expert answer:Lab to Determine the Outcome of Heredity, Biology

Answer & Explanation:Hi,I have a Biology assignment due tonight @ 11:00 EST.  If there is anyone that can help I would greatly appreciate it.  I have attached assigment.  Please let me know if anything futher is needed.Sincerely,Noturavggrlscie207_lab3_worksheet_rev.doc
scie207_lab3_worksheet_rev.doc

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Student Sheet
Name:
Date:
Instructor’s Name:
Assignment: SCIE207 Phase 3 Lab Report
Title: Lab to Determine the Outcome of Heredity
Instructions: You will fill out the Punnett squares and answer a set of questions for each exercise.
When your lab report is complete, submit this document to your instructor in your assignment box.
Using what you learned on the lab animation (and the images below), you will fill in the following
Punnett squares and answer the questions that follow:
Exercise 1: Color Blindness
A. Choose the parental gametes, and align these in the correct positions around the Punnett square.
(Type in the correct gametes. Pink are the female gametes, and blue are the male gametes. XC is
the gene for normal vision, and Xc is the gene for color blindness.)
XC
Xc
Xc
Y
B
B
B. Choose the correct genotype of the progeny to fill in the Punnett square.
(Type the correct genotypes in the boxes.)
XcXC
XcXc
______
______
______
XCY
XcY
______
Question
What is the genotype of the mother?
Answer
What is the genotype of the father?
What are the possible phenotypes of their children?
What is the probability of the color blind trait in female
children and the probability of the color blind trait in
male children?
X and Y genes code for male and female gender.
XX is female and XY is male. Why is XcY color
blind, but XcXC not color blind? Can an XcXC
female pass the color blind trait to her children?
Exercise 2: Freckles
C. Choose the parental gametes and align these in the correct positions around the Punnett square.
(Type in the correct gametes. The pink are female gametes, and the blue are male gametes.)
F
f
fF
f
A. Choose the correct genotype of the progeny to fill in the Punnett square.
(Type in the genotypes.)
FF
ff
Ff
______
______
______
______
Ff
ff
Ff
ff
Question
What is the genotype of the mother?
Answer
What is the genotype of the father?
What are the possible phenotypes of the children?
What is the probability of freckles in their children?
Freckles in humans are inherited by which pattern:
dominant/recessive, incomplete dominance, or
codominance? Why does the mother have freckles,
even though she has a gene for no freckles? Why
does the father have no freckles?
Exercise 3: Blood Type
A male has Type A blood, and a female has Type B blood. Could they have a child with Type O
blood? Demonstrate how this is genetically possible by filling out the Punnett square.
Choose the correct parental gametes from all of the potential blood type gametes below, and align
these in the correct positions around the Punnett square. (Type in the correct gametes. The pink are
female gametes, and the blue are male gametes.)
IA
IB
i
IA
IB
i
A. Choose the correct genotypes of the progeny, and fill in the Punnett square.
(Type the correct genotypes into the boxes from the possible genotypes shown below).
IAIA
IAi
IAIB
______
______
IBIB
______
IAIB
IAi
IBi
ii
______
Question
What is the genotype of the mother?
What is the genotype of the father?
What are possible phenotypes of their children?
What is the probability of Type AB blood in their
children?
Answer
IBi
ii
Ms. Johnson is suing her former husband for
potential child support payments for her 2year-old child. Mr. Johnson’s attorney
forcefully denies the fatherhood of his client,
stating that the child of Ms. Johnson has blood
type O, while the blood type of Mr. Johnson
has Type A blood. The lawyer claims that Mr.
Johnson cannot be the father of a child with
Type O blood. Is the attorney right? Why or
why not? Explain your answer.
…
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