1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Orlov [11]
3 years ago
10

4. A woman with defective tooth enamel (autosomal recessive) and normal color vision, (X-linked) who had a color blind father wi

th normal tooth enamel and a mother with normal vision and defective tooth enamel, marries a color blind first cousin with normal tooth enamel who had a father with defective tooth enamel. What is the probability of their having a child with normal tooth enamel and color blindness
Biology
1 answer:
Julli [10]3 years ago
8 0

Answer:

The probability of their having a child with normal tooth enamel and color blindness is 3/8 or 0.375

Explanation:

Let the alleles for normal and defective tooth enamel be T and t respectively.

Color blindness is on the X-Chromosome. Let the allele normal vision and colour blindness be Xn and Xc respectively.

The woman had a colour blind father (XcY) and a normal vision mother, so her allelic pair for vision will be XnXc.

Her father had normal tooth enamel while her mother had a defective tooth enamel, therefore, she will have the allelic pair, Tt.

Her genotype for vision and tooth enamel will be XnXcTt.

Her husband who is color blind with normal tooth enamel had a father with defective tooth enamel, tt. Therefore, her husband's genotype for vision and tooth enamel will be XcYTt.

From the dihybrid cross of XnXcTt and XcYTt, the following offspring are obtained:

XnXcTT, XnXcTt, XnYTT, XnYTt

XnXcTt, XnXctt, XnYTt, XnYtt

XcXcTT, XcXcTt, XcYTT, XcYTt

XcXcTt, XcXctt, XcYTt, XcYtt

From the results of the cross, a child with normal tooth enamel and color blindness will have the following genotypes: XcXcTT, XcXcTt, XcYTT, XcYTt, XcXcTt, XcYTt.

Probability of their having a child with normal tooth enamel and color blindness = 6/16 = 3/8 or 0.375

You might be interested in
Which is true about water molecules?
rodikova [14]

Answer: C

Explanation: Water is a polar molecule because the electrons of the hydrogen atoms get "pulled" towards the electrons of the oxygen atom. Which is both positive and negative on opposite ends.

It could be B as well but, I believe it's C

3 0
2 years ago
The term best used to describe the watery fluid that surrounds the outside of a cell is best known as
Masteriza [31]
By takeing a big nice juscy buns and banging it sooo hard
7 0
3 years ago
3 reasons cells need atp?
Inessa [10]

I belive they are to grow, repair, and reproduce.

6 0
3 years ago
Which process helps gas exchange to occur?
romanna [79]
The answer is a because I think so
6 0
3 years ago
Read 2 more answers
Carbon tends to form four bonds. What kind of bonds are they?
lidiya [134]

Carbon forms Covalent Bonds.      

7 0
3 years ago
Other questions:
  • What phrase best summarizes the theory of evolution by natural selection? A. Life evolves from other life. B. Only the strongest
    11·1 answer
  • What quantity measures the amount of matter in an object?
    6·2 answers
  • Which best describes a benefit of using DNA technology in medicine?
    15·2 answers
  • Which has eukaryotes plant cells?
    7·1 answer
  • What data do meteorologist collect from the water cycle
    9·1 answer
  • As opposed to external fertilization, internal fertilization ensures that
    15·1 answer
  • Resilience may include having traits such as a positive self-concept, sociability, intelligence and scholastic competence, auton
    8·1 answer
  • Help please it's for my final rn: The more massive the planet the more
    6·1 answer
  • Which process most increases the amount of<br> phosphorus available for use in the ecosystem?
    10·1 answer
  • What materials makes up a cell membrane?<br>​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!