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

Answers

Answer 1

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


Related Questions

The genetic researchers at Bay Medical Company are interested in spiders with the trait for medium silk flexibility. They
think this sik can be used for medical purposes such as for making stitches and for creating artificial tendons. Why do
you think offspring B has the medium silk flexibility trait?

Answers

Answer:

Due to similar shape.

Explanation:

I think offspring B has the medium silk flexibility trait because this offspring B is identical to the spider that is responsible for medium silk flexibility trait. There are some offspring identical to male parent spider due to the presence of dominant allele whereas very littles number of offspring is similar in appearance with the female spider due to recessive allele. If the male spider has medium silk flexibility trait so more number of offspring has medium silk flexibility trait as compared to others.

The people at the Medical research bay company are researching on spiders. the trait for the medium silk flexibility. The silk can be used for medical purposes and creating other tendons.

The B offspring has the medium flexibility trait it's identical to the spider that is responsible for the medium silk flexibility trait.  There are some offspring identical to male parent spider due to the presence of dominant allele spider due to recessive allele.

Learn more about the medical Company are interested in spiders.  

brainly.com/question/16207848.

When energy is transferred to or from a substance, it can change the molecules’ freedom of movement. True or False?

Answers

Answer:

True

Explanation:

When transfer energy, the substance's temperature changes which can change the molecules' freedom. For example, when water freezes the water molecules loose temperature and slow down, unlike in a gas where molecules are free and energetic.

How do divisions in the geologic time scale differ from the way we organize time using a clock?

Answers

Explanation:

The Earth's geologic past is divided into hierarchical time periods. This hierarchy comprises eons, eras, times, epochs, and ages, from largest to smallest. The Cenozoic, Mesozoic, and Paleozoic Periods are the three main divisions of the Phanerozoic.

The geological timescale is the official earth clock and differs from the way we organize time using a clock, as the planet's time is too long for us to use measures of hours.

Geologic timescale

Planet Earth is about 4.5 billion years old. To better understand its history, scientists divide geologic time into five levels of classification, called chronostratigraphic units:

EonsErasPeriodsEpochsand ages.

Eons are large and indeterminate spans of time and are divided into four classifications:

Phanerozoic (last 542 million years)ProterozoicArcheanand Hadean.

Of them, only the Hadean is not divided into ages. The ages are characterized according to the different positions of continents, oceans and their living beings. Within the ages are divided in the periods. Epochs, in turn, are divisions within periods and are divided into ages. According to the researchers, we currently live in the Quaternary period of the Cenozoic era.

To get a rough idea of ​​how much the existence of the human being is a mere recent episode in Earth's geological time, we use some analogies. For example, if the entire history of the planet were summarized in the twenty-four hours of a day, the existence of humanity would have occurred in the last three seconds of that same day.

Understanding the dimension of geological time and its scales of measurement becomes a fascinating mental exercise to better understand the role of man in relation to this temporality and his role as heir of all the transformations that have taken place in terrestrial space throughout the geological ages.

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How are mechanical waves produced?​

Answers

Answer:A mechanical wave is created when a source of energy causes a vibration to travel through a medium. ... Both carry energy through a medium with out transferring matter. In transverse waves, the medium vibrates perpendicular to the direction of wich the wave travels.

Explanation:

HELP. This is due in a bit. Giving Brainliest!!

Answers

a) Tall
B)tall
C)short
D)purple flour
E)purple Flour
F)white flour

According to Charles Darwin theory of natural selection

Answers

the answer should be the species most adaptable to changes (like in the environment etc.) but I would go for C or D

Answer:

C or D

Explanation:

the answer should be the species most adaptable to changes (like in the environment etc.) but I would go for C or D

Two scientists do not agree which type of grocery bag is better for the environment. What is the most likely outcome of their disagreement?

Answers

Answer:

The most likely outcome of their disagreement is the use of cloth tote bags

Explanation:

Give me your best shot of explaining how this occurred. This is different from the twins as this time both parents have darker skin, some of the offspring share that same skin color and some are albino

Answers

The parents might be heterozygous for albinism. So Aa and Aa for example. So their children have a 25% chance of having albinism

The from farmland is often contaminated with pesticides, herbicides,
fertilizers, and oils used in farm equipment.
O A. ammonia buildup
B. runoff
C. acid rain
O D. livestock
SUBMIT

Answers

Answer:

The answer to your question is B. Runoff

Explanation:

Answer:

B. Runoff.

Explanation:

Got it right!

Which of the following is true?
The flow of gases varies directly with airway resistance.
As lung compliance increases, the energy required to breathe increases
Surfactant increases the cohesiveness of water molecules therefore decreasing
the surface tension of the alveolar fluid.
Infant Respiratory Distress Syndrome occurs when there is a lack of surfactant
produced. THis is common in premature infants.
In healthy individuals, friction is a major factor affecting pulmonary ventilation

Answers

Answer: Infant Respiratory Distress Syndrome occurs when there is a lack of surfactant  produced. This is common in premature infants.

Explanation:

Infant Respiratory Distress Syndrome (RDS) occurs in new born infants whose lungs are unable to produce the enough surfactant to keep their lungs expanded which would enable them to breathe properly after delivery.

It is most common in premature infants because surfactant is produced in the third trimester of pregnancy so premature infants might not get the chance to produce enough before the are delivered. RDS needs to be treated as soon as possible or else a baby could suffer damage to the brain and other vital organs.

check this for me pls

Answers

Answer:

it's both A and B for your answer

Explanation:

both genders can get this disease since it's being past down to their children or offspring, some may get that gene and some might not.

What type of plate boundary is shown in the diagram

A. Subduction boundary
B. Convergent boundary
C. Divergent boundary
D. Transform boundary​

Answers

I'll need to see a picture of the diagram to be able to answer this luv!?

Name the 4 bases found in DNA.

Answers

Answer:

thyminene, T

adenine, A

guanine, G

cytosine, C

Explanation:

Answer:

Adenine, thymine, cytosine and guanine

Explanation:

I have to write an acrostic poem for the word mutation. This is for science please help me ASAP!!

Answers

Mistakes not corrected during DNA Replication

Universal genetic code

Transcription and Translation

All amino acids after a Frameshift mutation are changed

They can either change one base or delete or add another

Ionizing radiation can induce mutations

Of course sometimes mutations don't change the amino acid sequence

Noncoding DNA Strand is complimentary to RNA

. Rain washing away soil from a hillside is an example of.... *
1 point
weathering
erosion
deposition
Plz helpp

Answers

Answer:

erosion

Explanation:

rain moving soil is the earths crust slipping, also known as erosion

Answer:

Erosion

Explanation:

because weathering is the breakdown of rocks by physical or chemical weathering, deposition is the dropping of eroded material, and erosion is the movement of rock material from one place to another.

Hope you understood the concept at least.

In some pea plant crosses, the plants are self-pollinated. Is self-pollination considered asexual or sexual reproduction? Explain your reasoning. I need a good answer and not from quizlet

Answers

wsdgfrvcdxqsegtfrvdb senb wendsnf

Which step occurs in meiosis to prepare for fertilization in sexually
reproducing organisms?

Answers

Answer: 12 sexual reproduction and meiosis concept outline

Explanation: The process of meiosis produces unique reproductive cells called gametes, which have half the number of chromosomes as the parent cell. Fertilization, the fusion of haploid gametes from two individuals, restores the diploid condition. Thus, sexually-reproducing organisms alternate between haploid and diploid stages.

Hope this helps :D

50 POINTS 4. The age of the Canyon Diablo meteorite was determined by
A) carbon-14
B) uranium-235
C) hydrogen-3
D) potassium-40​

Answers

Answer:

The answer is uranium have an awesome day!

Which is one characteristic of producers?

They recycle nutrients.

They do not eat other organisms.

They break down waste for energy.

They use other organisms for energy.

Answers

Answer:

That would be A

Explanation:

They recycle nutrients back into the soil

Homeostasis is the ability of the body to maintain internal balance despite changing external conditions. How does the respiratory system help maintain homeostasis? The respiratory system helps release hormones to control body processes. The respiratory system helps release unwanted heat and water from the body, The respiratory system produces white blood cells that kill disease causing organisms. The respiratory system releases enzymes that help in the break down of food.​

Answers

Answer:

b on edge

Explanation:

its right

The respiratory system helps release unwanted heat and water from the body, maintaining homeostasis.

What is homeostasis?" A state of balance among all the body systems needed for the body to survive and function correctly."How respiratory system maintain homeostasis?Respiratory system helps to remove carbon dioxide and excess heat from our body and maintains our blood pH.During respiration, carbon dioxide reacts with water to form a carbonic acid in presence of enzyme carbonic anhydrase. It further dissociates into bicarbonate and H+ ions. This reaction are in equilibriumWhen the level of H+ ions increases, the pH level increases. This will signal respiratory system to release more carbon dioxide. This will result in formation of carbon dioxide and decrease level of H+ ions which will result in increase blood pH.When we breathe out, the moisture from the tissue are also expelled.

Hence, the respiratory system helps release unwanted heat and water from the body.

To know more about homeostasis here

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A student boiled a pot of water on the stove until there was nothing left. If he started with 100 grams of water, how many grams of water vapor did he produce?

Answers

Answer:

100 grams

Explanation:

If there is nothing left that means that all of the 100 grams have become water vapors

He produced 100 grams of water vapor in such a way that nothing was left, which means that all the water vapor of 100 grams has become.

What is Water vapor?

Water vapor is also called aqueous vapor is defined as the gaseous phase of water which is a state of water within the hydrosphere. Water vapor can result from the evaporation or boiling of liquid water, or from the sublimation of ice that is transparent, as are most components of the atmosphere.

When water absorbs a sufficient amount of heat it becomes a gas known as water vapour, where the process is called evaporation. The water vapor (steam) mixes with the air and appears as water boils in a teapot and escapes into the air.

Thus, the student produced 100 grams of water vapor in such a way that nothing was left, which means that all the water vapor of 100 grams has become.

Learn more about Water vapor, here:

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For a thunderstorm to occur there must be instability lift and _______? A. Moisture. B. Cold temperatures. C. A time between noon and 3:00

Answers

Answer:

A. Moisture.

Explanation:

There are three ingredients that must be present for a thunderstorm to occur. They are: MOISTURE, INSTABILITY, and LIFTING.

Answered by NONE other than the ONE & ONLY #QUEEN herself aka #DRIPPQUEENMO!!!

HOPE THIS HELPED!!

List 4 significant problems with nuclear power plants....,,,,,?

Answers

Barriers to and risks associated with an increasing use of nuclear energy include operational risks and the associated safety concerns, uranium mining risks, financial and regulatory risks, unresolved waste management issues, nuclear weapons proliferation concerns, and adverse public opinion. Hope this helps!

Which sections are part of a career plan? Select all that apply.

career definition
career requirements
current status
short-term goals
intermediate goals
economic obstacle

Answers

Answer:

career definition

career requirements

current status

short-term goals

intermediate goals

economic obstacle

Explanation:

Answer:

career definition

career requirements

current status

short-term goals

intermediate goals

economic obstacle

Explanation:

what is ovary in plants?

Answers

Explanation:

Ovary, in botany, enlarged basal portion of the pistil, the female organ of a flower.

The ovary contains ovules, which develop into seeds upon fertilization.

The ovary itself will mature into a fruit, either dry or fleshy, enclosing the seeds.

Answer:

The ovary is the enlarged basal portion of the pistil, the female organ of a flower.

The ovary contains ovules, which develop into seeds upon fertilization. The ovary itself will mature into a fruit, either dry or fleshy, enclosing the seeds.

Explanation:

Umami is one of the taste types that humans can recognize. Which selections below describes the taste of umami? savoriness, brothy, meaty salty sweet bitter

Answers

Answer:

a. savoury...........

Option A) savoriness, brothy, meaty

Seed size in a plant is a polygenic characteristic. A grower crosses two pure-breeding varieties of the plant and measures seed size in the F1 progeny. She then backcrosses the F1 plants to one of the parental varieties and measures seed size in the backcross progeny. The grower finds that seed size in the backcross progeny has a higher variance that does seed size in the F1 progeny. Explain why the backcross progeny are more variable.

Answers

Answer:

The F1 progeny is completely heterozygous for the loci of interest since they were obtained by mating between two pure-breeding plant lines. In the next generation, the backcross progeny will have homo-zygous individuals and therefore they will be more variable, resulting from meiosis in F1 hybrids

Explanation:

An F1 resulting from the cross between two pure-breeding plant lines will produce all hybrid individuals, all of them genetically (and phenotypically) identical. Meiosis in F1 hybrids is well known to produce homo-zygous genotypes and thus increases genetic diversity in progeny. For instance, for a single locus, the expected ratio of genotypes obtained from crossing two heterozygous parents is 1:2:1, i.e., one homo-zigous dominant individual, two heterozygous individuals (genetically identical to the parents) and one homo-zygous recessive individual; while the expected phenotypic ratio is 3:1 (i.e., 3 dominant expressing: 1 recessive expressing​).


PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!

Answers

Answer:

D

Explanation:

All the other answers dont really make as much sense. So D is best answer.

:)

1. What do you know about gravity?
2. How could gravity affect the water cycle?

Explain your answer.''

Answers

Explanation:

What do you know about gravity?

ans:Gravity is a force of attraction that exists between any two masses, any two bodies, any two particles. Gravity is not just the attraction between objects and the Earth. It is an attraction that exists between all objects, everywhere in the universe. ... where G is called the Gravitational Constant.

How could gravity affect the water cycle?

ans:It pulls precipitation down from clouds and pulls water downhill. Gravity also moves air and ocean water. ... Gravity pulls denser air and water downward, forcing less dense air and water to move upward. The warm water near the surface of the ocean heats up with sunlight and evaporates, keeping the water cycle in motion.

PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.

Answers

Answer:

a

Explanation:

Answer:

I'm pretty sure that the answer is A

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