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
My name is Ann [436]
3 years ago
15

A gene is composed of two alleles. An allele can be either dominant or recessive. suppose that a husband and a wife who are both

carriers of the sickle-cell anemia allele but do not have the disease, decide to have a child. because both parents are carriers of the disease, each one has a dominant normal cell allele (S), and one recessive sickle-cell allele (s). Therefore the genotype of each parent is Ss. Each parent contributes one allele to his or her offspring with each allele being equally likely.
a.List the possible genotypes of their offspring.
b. what is the probability that the offspring will have sickle cell- genotype ss?
c. what is the probability that the offspring will not have sickle cell but still be a carrier (one normal cell allele and one sickle cell allele)

Mathematics
1 answer:
alexandr1967 [171]3 years ago
7 0

Answer:

a) SS, Ss, ss

b) 1/4

c) 1/2

Step-by-step explanation:

According to this question, a gene coding for possession or not of sickle cell has two alleles. Allele "S" codes for normal cell while allele "s" codes for sickle cell. A heterozygous individual or carrier will have a "Ss" genotype.

If two carriers of the sickle cell condition decide to have a child and mate i.e. Ss × Ss, the following gametes will be produced by each parent: S and s.

a) Using these gametes (S, s) in a punnet square (see attached image), the four possible offsprings with the following genotypes will be produced: SS, Ss and ss in a GENOTYPIC RATIO 1:2:1.

b) Since offsprings with the genotype "ss" will possess the sickle cell condition/phenotype, the probability of offsprings that will have sickle cell is 1/4 i.e. 1 out of 4 possible offsprings

c) Also,carrier genotype will be "Ss", therefore, the probability that the offspring will not have sickle cell but still be a carrier (one normal cell allele and one sickle cell allele) will be 2/4 or 1/2 i.e. 1 out of 2 possible offsprings.

You might be interested in
Sarris daily tips this work week were $43, $32, $65, $88, $50 and $72. Is Sarah correct in thinking that the mean accurately rep
ella [17]
The answer is A.

Add all the number values together and then divide it by the number of values you have: 43+32+65+88+50+72=350
350/6=58.33
7 0
3 years ago
Which absolute value equation represents the graph? PLEASE HELP
storchak [24]

Answer:

c

Step-by-step explanation:

i just looked up the question

3 0
3 years ago
chloe and jack play 4 games. the probability that chloe wins any game is 4/5. what is the probability that chloe wins for the 1s
Iteru [2.4K]

\dfrac{1}{5}\cdot\dfrac{1}{5}\cdot\dfrac{1}{5}\cdot\dfrac{4}{5}=\dfrac{4}{625}

6 0
3 years ago
Read 2 more answers
HELP ASAP PLS! The ratio of bows to headbands of Monique’s hair accessories is 8:4. Select all true statements.
Ratling [72]
Obviously a b c & d.
3 0
3 years ago
ASAP please help me ​
Marizza181 [45]

Answer:

dont really know buy im thinking its A.

Step-by-step explanation:

hope this helps somewhat

7 0
3 years ago
Other questions:
  • Using complete sentences,explain what infinite set is. In your answer give it at least two examples of infinite sets
    15·2 answers
  • Change 4 3/5 to a improper fraction
    14·1 answer
  • If the area of each of the triangular regions is as shown, what is the area of the polygon?
    11·2 answers
  • You calculate the number of spots on a pair of two dice that you roll, sides facing up (the total can be called "x"). this is al
    15·1 answer
  • 20 POINTS!!!!!!
    11·2 answers
  • Curtis divided 27.16 by 2.8 in Got 0.97 is his answer reasonable why or why not
    9·1 answer
  • Find the slope of 6x-7y=14
    8·2 answers
  • Solve the following equation algebraically:
    13·1 answer
  • Help me please!!!!!!!!!!!
    6·1 answer
  • What is the relationship between the factors and the graph of a polynomial equation??
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!