15.Albinism in humans is autosomal and fully recessive to normal color. A couple, who are both normal, have a daughter who is albino and a son who is normal.e couple wants to have 3 more children. What is the probability that they will have 3 normal girls

Answers

Answer 1

Answer:

27/512

Explanation:

Let the allele for albinism be represented by a (since it is recessive), the normal skin color allele would then be A.

A normal person would have either AA or Aa genotype. The Aa, even though normal in appearance is carrying the albinism allele and is known as a carrier of the trait.

For a normal couple to have given birth to a son with albinism, it means they are both a carrier of the trait (Aa).

Crossing the two individuals in marriage:

        Aa    x    Aa

    AA   Aa   Aa   aa

The probability of giving birth to an albino is, therefore, 1/4 while that of giving birth to a normal individual is 3/4. These probabilities remain the same for every potential birth irrespective of the number of children they already have.

The probability of given birth to a boy or a girl is 1/2 for every potential birth.

The probability of having a normal boy/girl would be 1/2 x 3/4 = 3/8

Hence, the probability of having 3 normal girls in their next 3 children would be: 3/8 x 3/8 x 3/8 = 27/512


Related Questions

what kind of mutation occurred when the DNA strand changed from AATCGTCCG TO AATAGTCCG?

Answers

Answer:

Missense Mutation

Explanation:

AAT CGT CCG to AAT AGT CCG where CGT has become AGT is a point mutation. If a point mutation changes the amino acid, it’s called a missense mutation. In this case CGT (arginine) has become AGT (serine).

What is the fallopian tube fimbriae made of? Pls I need help asap

Answers

Answer:

The mucous membrane would be the answer

what are the advantage of the presence of hydrogen in large scale in the sun ?​

Answers

hydrogen is essential to nuclear fusion. hydrogen is the fuel the sun burns. we don't have to burn solar energy, so there's no smoke and pollution

Answer:

Hydrogen fusion reaction is the one which provides so much light and heat (in short, energy) which escapes into space and spread. If Hydrogen on sun ends, It will lose its warmth (and may be soon become a planet, but will surely be a dead star).

Explanation:

Answer from Gauth math

which life cycle stage is found in plants but not animals ​

Answers

Answer:

Multicellular haploid

OAmalOHopeO

Plants have multicellular haploid and multicellular diploid stages in their life cycle.

Gametes develop in the multicellular haploid gametophyte . Fertilization gives rise to a multicellular diploid sporophyte, which produces haploid spores via meiosis.What is multicellular haploid  stage?The haploid multicellular stage produces specialized haploid cells by mitosis that fuse to form a diploid zygote.The zygote undergoes meiosis to produce haploid spores. Each spore gives rise to a multicellular haploid organism by mitosis.

To know more about diploid stage here

https://brainly.com/question/885170

#SPJ3

In New York, the worst-hit state, a total of 350,121 cases have been confirmed and 28,232 deaths have been reported. There are now 29 states with tens of thousands of cases, and more than 50,000 in New York, New Jersey, Massachusetts, Illinois, California, Pennsylvania and Michigan

Answers

Answer:

Thats true

Explanation:

The meaning of ALARA in radiation?

Answers

Answer:

The guiding principle of radiation safety is “ALARA”. ALARA stands for “as low as reasonably achievable”.

For every 100ml of deoxygenated blood delivers approximately _____ml of CO2 to the alveoli.​

Answers

Answer:

For every 100ml of deoxygenated blood delivers approximately __4___ml of CO2 to the alveoli.

Answer:

4ml

Explanation:

For every 100ml of deoxygenated blood delivers approximately 4 ml of CO2 to the alveoli.

Hope it is helpful....

A large section of tropical rainforest is cleared to build roads for mining. Select the least likely outcome of this habitat fragmentation from the options below. a.) Species that require open grazing areas may not survive. b.) Species will quickly adapt and re-populate the area. c.) The environment on the habitat edges will support different plants and animals. d.) Subpopulations of species may emerge.

Answers

Answer:

B

Explanation:

B - Species, especially ones with small niches, that looses their niches will likely die out or move to another location. Roads Will, in general, also disrupt the ecosystem (or the remains of it) and its inhabitants, which might lead to migration once again. That would be my reasoning at least. (:

What do MSDS sheets do, in your own words

Answers

Answer: The MSDS lists the hazardous ingredients of a product, its physical and chemical characteristics (e.g. flammability, explosive properties), its effect on human health, the chemicals with which it can adversely react, handling precautions, the types of measures that can be used to control exposure

Explanation:

Compared with a eukaryotic cell, a prokaryotic cell Select one:______
a. lacks organelles beyond ribosomes.
b. is larger.
c. does not require energy.
d. is not living.
e. has no method of movement.

Answers

I believe A) would be the most correct answer in this case. However, the most significant difference between eukaryotes and prokaryotes is that eukaryotic cells contain a nucleus, while the latter does NOT.

B) is incorrect because prokaryotic cells are typically smaller than eukaryotic cells. Think bacteria and other microorganisms.

C) is incorrect because, well, energy is…

D) False, a non-living microorganism would be considered a prion or virus before prokaryote.

E) Many prokaryotic cells actually contain flagellum or cilia for transport.

Let me know if you have other questions — good luck.

List 3 variable that Anurag should keep the same

Answers

Answer:

seawater ,upside-down funnel and seaweed

Explanation:

some strains of __________________ produce proteins that kills certain insects such as lepidopterans , coleopterans and dipterans​

Answers

Answer:

Bacillus thuringiensis

Explanation:

some strains of Bacillus thuringiensis produce proteins that kills certain insects such as lepidopterans , coleopterans and dipterans​

Answer:

Bacillus thuringiensis


What component of Earth's atmosphere exists entirely as a result of photosynthesis?
oxygen pas
n mas
O water vapor
O nitrogen gas
O carbon dioxide gas

Answers

Answer:

Explanation:

Carbon dioxide

The last one is correct
Hope its help for your questions

Ecosystems rely on interdependence between species to keep balance. Which of the following is a threat to a stable
ecosystem?
A. Loss of biodiversity
B. High biodiversity
C. Low biodiversity
D. Increase in biodiversity

Answers

Answer:

loss of biodiversity

Explanation:

Biodiversity- refers to the variety of life on Earth at all its levels, from genes to ecosystems, and can encompass the evolutionary, ecological, and cultural processes that sustain life.

loss in biodiversity affect food chains greatly

thanks

hope it helps

Fertilization, Fruit and Seed Formation x3 3. a. name the two processes that lead to seed formation in flowering

Answers

Answer:

Pollination, the transfer of pollen from flower-to-flower in angiosperms or cone ... In angiosperms, the process of seed development begins with double ...

Missing: x3 ‎| Must include: x3

identify the following organism and state to which phylum it belongs​

Answers

Answer:

it belongs to Coelenterata phylum.

What is the function of the mitochondria?
A. Stores the cell's DNA
B. Builds proteins
C. Produces energy for the cell by respiration
OD. Stores the cell's glucose
Reset Selection

Answers

C. Mitochondria is like the power plant of the cell and produces its energy.

Answer:

Produces energy for the cell by respiration

Explanation:

The glucose obtained from food is broken down to pyruvic acid in the cytoplasm. This pyruvic acid is broken down into oxygen, water and energy rich ATP molecules in the Mitochondria.

What will the percentage of cytosine be in this segment of DNA?

Answers

Answer:

15%

Together, adenine and thymine compose 70% of the segment. This means that 30% of the section is composed of guanine-cytosine pairs. Since these two bases will be equal in quantity, 15% of the DNA section will be cytosine bases.

Which BEST
describes the
amount of air in
a typical soil?
A. about 90%
B. hardly any
C. about 25%

Answers

Answer:

C

Explanation:

it's about 20%-30%, so C would appropriately about that range since it the best answer :)

hope it helps

What variable should Anurag change in his experiment

Answers

Answer:

For geological carbon sequestration, the reaction of aqueous CO2 with silicate rock permits carbonate formation, achieving permanent carbon sequestration.A

Explanation:

A small group of mice are released on an island without mice but with abundant food for mice and no predators. After the population size stabilizes for several years, a hurricane drastically reduces it. We can now say that:________.
A) the biotic potential of the population has been reduced.
B) its new population size is a result of density-dependent regulation.
C) its new population size is a result of density-independent regulation.
D) it can now act as a sink metapopulation.

Answers

The correct answer is option C) The new mice population size is a result of density-independent regulation.

The carrying capacity might be affected by different factors, known as limiting factors, which might be a result of the population density (for example, competition) or might be density-independent. This last case refers to dense-independent factors, and among these, we can mention human impact or natural disasters (fires, volcanic eruption, flooding). Natural disaster causes damages in an ecosystem, reducing the available resources such as food or shelter, and consequently decreases the number of individuals. Natural disasters reduce the carrying capacity of the environment

In the exposed example, mice got to stabilize on the island. The population had enough food and no predators. But the occurrense of the huricane reduced drastically the population size. This is an example of a natural dissaster acting as a limiting dense-independent factor affecting the population size.

Related link: https://brainly.com/question/12995731?referrer=searchResults

how do cells of plant devide without centrioles? explain​

Answers

Answer:

Because the spindle fibers originate outside the nuclear membrane, plant cells can divide without centrioles.

 ~OAmalOHopeO

What happens during rusting of an iron nail?

1 sulfur and oxygen combine to form a sulfur dioxide coating

2 iron and oxygen combine to form iron oxide

3 sulfur, iron, and oxygen combine to form iron sulfoxide

4 iron and sulfur combine to form iron sulfide

Answers

Answer: the correct answer is B number 2

Explanation: I just answered this question

Phân tích các quy luật hoạt động thần kinh cấp cao ở trẻ và vận dụng trong thiết lập thói quen học tập và kỉ luật ở học sinh tiểu học.

Answers

Answer:

very different than ducks do u want it is not the

What is the fubtion of the nerves

Answers

Answer:

carry messages to and from the brain and spinal cord and the rest of the body

OR

it is a bundle of fibers that receives and sends message between the body and the brain

Answer:

The nervous system is the body's primary governing, regulating, and communication system. It is the hub of all mental activity, such as thinking, learning, and remembering. The nervous system, together with the endocrine system, is in charge of regulating and maintaining homeostasis.

OAmalOHopeO

During the performance of the simple staining procedure, you failed to heat fix your E-coli smear preparation. Upon microscopic examination , how would you expect this slide to differ from the correctly prepared slides ?

Answers

OMG I'm a business study Student so I really don't know about this stuff

Two species have homologous structures. What do these homologous structures show about the evolutionary relationship between the two species?

Answers

Two species have homologous structures. What do these homologous structures show about the evolutionary relationship between the two species? (3 points) The homologous structures show that the two species followed up the evolutionarypath up to the structure. They may have branched off right after that trait.

Why should body temperature not be allowed to fluctuate too much? ​

Answers

Answer:

Because that can destroy the helpful enzymes in the body, and therefore cause a lot of problems or maybe cause death

Cystathioninuria can be caused by two different mutations in the enzyme cystathionase. Cystathioninuria caused by mutation 1 can be overcome by providing cells with increasing concentrations of the coenzyme pyridoxal phosphate. Which of the following statements describe the most likely changes in the binding affinities of the two mutant enzymes?
A. Both mutant enzymes have lost the ability to bind the substrates.
B. The enzyme with mutation 1 has lost the ability to bind to the substrates, whereas the enzyme with mutation 2 has lost the ability to bind to pyridoxal phosphate.
C. The enzyme with mutation 1 has decreased affinity for pyridoxal phosphate, whereas the enzyme with mutation 2 has lost the ability to bind to the substrates.
D. Both mutant enzymes have lost the ability to bind pyridoxal phosphate.

Answers

Answer:

C. The enzyme with mutation 1 has decreased affinity for pyridoxal phosphate, whereas the enzyme with mutation 2 has lost the ability to bind to the substrates.

Explanation:

A coenzyme is an organic cofactor that binds with an enzyme in order to initiate or aid the function of the enzyme. A coenzyme binds to the active site of the enzyme (where the reaction occurs), thereby triggering its activation by modifying protein structure during the reaction. Some examples of coenzymes include Coenzyme A and Adenosine triphosphate (ATP). Pyridoxal phosphate is a coenzyme (it is the active form of vitamin B6) that is required for the function of cystathionase. Moreover, cystathionase is an enzyme that enables cells the synthesis of cysteine from methionine (transsulfuration pathway). The binding of pyridoxal phosphate to the enzyme increases the binding affinity of the enzyme for the substrate, thereby influencing its activity. In this case, it is expected that mutation 1 reduces the binding affinity of the enzyme to the cofactor, and thereby the cofactor is required at a higher concentration to restore normal enzyme activity.

¿Qué afirmación(es) es(son) correcta(s)?:
a) El dióxido de azufre de la quema de carbón en centrales
eléctricas protege contra la lluvia ácida.
b) Los óxidos de nitrógeno de las emisiones de combustión
provocan el aumento del pH en el agua de lluvia.
c) Una solución ácida de dióxido de carbono en agua de lluvia se
llama lluvia ácida.
d) El dióxido de azufre junto con los óxidos de nitrógeno son las
principales causas de la lluvia ácida.

Answers

Explanation:

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