The ability to taste the chemical PTC is determined by a single gene in humans with the ability to taste given by the dominant allele T and the inability to taste by the recessive allele t. Suppose two heterozygous tasters (Tt) have a large family. What is the likelihood that their first child will be a taster
Answers
Answer:
75%
Explanation:
This question involves a single gene coding for the ability to taste the chemical PTC. The allele coding for the ability to taste (T) is dominant over the allele coding for the inability to taste (t). This means that an heterozygous individual will have the ability to taste PTC.
According to this question, if two heterozygous tasters (Tt) cross to have a large family i.e. Tt × Tt, the following gametes will be produced by each parent;
Tt = T and t
Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:
TT, Tt, Tt - Tasters (3/4 or 75%)
tt - Non-taster (1/4 or 25%)
Note that based on the question asked, there is a 75% probability that their first child will be a taster because there is equal segregation of alleles into gametes.
Related Questions
NEED HELP ASAPP PLZZ
WIL GIVE BRAINLIEST
Answers
Explanation:
phenotypic ratio = 9: 3: 2: 1: 1
plz mark my answer as brainlist plzzzz. hope this will be helpful to you .
Column A
Column B
1.
a. biotic
A community of interacting biotic and abiotic
factors.
Living factors in an ecosystem.
2. d
b. herbivores
3.
a
Non-living factors in an ecosystem
c. ecosystem
e
d. abiotic
4 5.
Organisms that can obtain energy directly from
the sun.
Organisms that obtain energy by feeding on
other organisms
Primary consumers
e decomposer
6.
f producers
7. h
Animals that feed on the flesh of other animals.
g consumers
8.
h. carniyores
k
Consumers that feed on both plants and animal
flesh
Literally meaning self-feeding
9.
i heterotroph
b
j. autotroph
10.
Literally meaning feeding on others
k.
omnivores
11.
f
Organisms (bacteria, insects, worms, and fungi)
that break down animal waste and dead
organ
Answers
Answer:
1. A community of interacting biotic and abiotic factors. - C. ecosystem
2. Living factors in an ecosystem. - A. biotic
3. Non-living factors in an ecosystem. - D. abiotic
4. Organisms that can obtain energy directly from the sun. - J. autotroph
5. Organisms that obtain energy by feeding on other organisms - I. heterotroph
6. Primary consumers . - B. herbivores
7. Animals that feed on the flesh of other animals. - H. carnivores
8. Consumers that feed on both plants and animal flesh . - K. omnivores
9. Literally meaning self-feeding . - F. producers
10. Literally meaning feeding on others . - G. consumers
11. Organisms (bacteria, insects, worms, and fungi) that break down animal waste and dead organisms. - E. decomposer
Explanation:
5.Write observation and conclusion of each of the following activities
Answers
Answer:
Water puts pressure depends on their amount.
Explanation:
On the left side, there is less quantity of water in the tube that put less pressure on the bag present at the bottom and the bag swells slightly while on the other hand, on the right side, there is more amount of water in the tube that puts large pressure on the bag located at the bottom and as a result it swells higher than the other bag so we can conclude that more water puts more pressure and less water puts less pressure.
What are 3 astronomical objects that radio waves can detect.
Answers
Answer: Radio telescopes look toward the heavens to view planets, comets, giant clouds of gas and dust, stars, and galaxies
Explanation: By studying the radio waves originating from these sources, astronomers can learn about their composition, structure, and motion.
Mark me brainliest please please please please please please please please!!!!!!!!!!!!
Which is an advantage to using nonrenewable resources?
They can be cheaper.
They can have a lower impact on the environment.
They can be used up rapidly.
They can contribute to global warming.
Answers
Answer:
A
Explanation:
18. Marlon took the microscope and observed a sliced plant leat. He switched it into 100% magnification and saw
a green pigment. In which part of the plant cellis it found?
a nucleus b. mitochondrion G chloroplast d. lysosome
Answers
Answer:
chloroplast
Explanation:
its is the green pigment in the plant. it allows photosynthesis to take place
If the word "diversity" means "variety" and the prefix "bio-" means "life", what do you think the word "biodiversity" in an ecosystem means?
Answers
Answer:it means a verity of life
Explanation:because like you said diversity means verity and bio means life
What three parts make up the modern cell theory
Answers
2.cells of all organisms
3.energy
Which of the following rows in the table best compares the function of a plant's xylem and phloem? I Need help ASAP!
Row 1
Xylem
- transports glucose absorbed by the roots to the rest of the plant
- alive at maturity
Phloem
- transports water and nutrients produced by photosynthesis in the leaves to the rest of the plant
- dead at maturity
Row 2
Xylem
- transports glucose produced by photosynthesis in the leaves to the rest of the plant
- dead at maturity
Phloem
- transports water and nutrients absorbed by the roots to the rest of the plant
- alive at maturity
Row 3
Xylem
- transports water and nutrients absorbed by the roots to the rest of the plant
- dead at maturity
Phloem
- transports glucose made during photosynthesis in the leaves to the rest of the plant
- alive at maturity
Row 4
Xylem
- transports water and nutrients produced by photosynthesis in the leaves to the rest of the plant
- alive at maturity
Phloem
- transports glucose absorbed by the roots to the rest of the plant
- dead at maturity
Answers
Answer:
row 3
Explanation:
xylem transport water and nutrient absorbed by the root to other part of the plant
Answer:
Row 3
Explanation:
I took the exam
18) The enzyme poly-A polymerase is responsible for adding 3' poly-A tails to eukaryotic mRNAs. This enzyme... A. cuts the mRNA after recognition of the cleavage/polyadenylation signal by CstF and CPSF proteins. B. polymerizes the tail using an RNA template that is part of the enzyme. C. isthesameaspolII D. normally adds about 2000 A nucleotides to the mRNA. E. uses A TP as a substrate.
Answers
Answer:
The correct answer is - option e. uses ATP as a substrate.
Explanation:
Poly-A Polymerase is an enzyme of the family of the DNA polymerase beta (polβ) family which catalyzes the reaction of the addition of AMP from ATP to the DNA polymerase beta (polβ) family.
ATP+RNA-3'OH--------->Pyrophosphate + RNApA-3'OH.
In this reaction, after the mRNA is cleaved, the Poly-A Polymerase template-independently adds about 200 A nucleotides (from ATP) one by one.
Review: Fill in the boxes with missing vocabulary Need Help: Click here Polymer Monomer Protein nucleotide
Answers
Answer:
This question is asking for the polymer and monomer of nucleotide and protein respectively.
The answer is:
Protein - monomer is AMINO ACID
Nucleotide - polymer is NUCLEIC ACID
Explanation:
There are four major biological molecules found in nature namely: protein, carbohydrates, fats and oil, nucleic acid. These biological molecules are, however, complex and polymeric in nature and like every other polymer, they must contain monomers that make up their structure.
- PROTEINS are made up of monomers called AMINO ACIDS.
- CARBOHYDRATES are made up of monomers called MONOSACCHARIDES.
- LIPIDS are made up of monomers called FATTY ACIDS.
- NUCLEIC ACIDS are made up of monomers called NUCLEOTIDES.
Question 4
The sodium-potassium pump is involved in establishing the resting membrane potential.
True false question.
True
False
Answers
ANSWER: TRUE
In a normal respiratory cycle the volume of air that moves into and out of the lungs is about 504 mL. The reserve and residual volumes of air that remain in the lungs occupy about 2030 mL and a single respiratory cycle for an average human takes about 4 seconds. Find a model for the total volume of air V(t) in the lungs as a function of time.
Answers
Answer:
[tex]V(t)=252sin(\frac{\pi}{2}t )+2282[/tex]
Explanation:
The volume of air increases and decreases, hence the volume of air can be represented as a sine function.
A sine function is of the form:
y = Asin(B(x - C)) + D
Where A is the amplitude, B is the frequency, C is the horizontal shift and D is the vertical shift.
Therefore, the total volume of air V(t) in the lungs as a function of time is given by:
V(t) = Asin(B(t - C)) + D
Since the volume of air in and out of the longs is 504 ml, hence the amplitude (A) = 504/2 = 252
There is residual air of 2030 ml minimum in the lungs and a maximum of 2534 ml (2030 ml + 504 ml), hence the vertical shift (D) = (2534 + 2030) / 2 = 2282 ml
The frequency B = 2π / 4 s = π/2
Therefore:
[tex]V(t)=252sin(\frac{\pi}{2}t )+2282[/tex]
1. What effect does air pressure have on wind movement?
2. What happens to the density of air as it is heated?
3. It’s a hot, sunny morning in a coastal town in South Florida. Warm air is rising up from the land. Large, puffy clouds are forming overhead. Which way do you think the wind will be moving this afternoon, and what do you think will happen to the temperature?
Answers
Answer:
1. The lower the air pressure the faster the wind the higher the air pressure the slower the winds
2. When the heat of the air increases the density of the air decreases.
3. The air above the ocean will, therefore, be warmer and of low pressure than that over land which will be cooler and of relatively higher pressure. Winds will, therefore, blow seawards because winds blow from high to low-pressure systems.
Explanation:
Reverse faults are the result of tension.
True or false?
Answers
Answer:
can you helppp me with dna
someone help me pleaseeee
Answers
Answer:
c
Explanation:
the question is asking about the energies. when the two cars are moving towards each other they are accelerating meaning they have kinetic energy. when they collide; on rebounding, the car regains a smaller amount of kinetic energy – this time travelling backwards. So the overall process is that kinetic energy becomes heat and spring potential energy, which results in heat, smaller kinetic energy and, hopefully, surviving occupants. so the speed of the car before and after will show the energy change
Since Asha is a healthy woman in her forties, she does not have Niemann-Pick disease type A. For this question, assume that she is a healthy person who is a carrier. If Asha is a carrier of the allele for Niemann-Pick disease type A, what is her genotype?
Answers
Answer:
Aa is her genotype
Explanation:
This is because since she is just the carrier and she is healthy, her genotype will be heterozygous with the allele for Nieman pick up disease recessive because it's effect is been masked by the allele that is not Nieman pick up disease because it is dorminant. Therefore , the allele for healthiness is dorminant over allele for Nieman disease.
DNA contains the code for for constructing which molecules?
Lípids
Proteins
Carbohydrates
Suzars
Question 13
6.7 pts
Answers
Answer:
proteins
Explanation:
Match the description with the asexual reproduction of plants.
Group of answer choices
underground stems that store nutrients and can grow into new plants
[ Choose ]
plantlets
runners
tubers
potato
[ Choose ]
plantlets
runners
tubers
tiny plants that grow on the edges of a plant's leaves
[ Choose ]
plantlets
runners
tubers
above ground stems that can develop new plants
[ Choose ]
plantlets
runners
tubers
strawberries
[ Choose ]
plantlets
runners
tubers
Answers
Answer:
plant lets I think abcdefg
Explanation:
Match the description with the asexual reproduction of plants.
Group of answer choices
underground stems that store nutrients and can grow into new plants
[ Choose ]
plantlets
runners
tubers
potato
[ Choose ]
plantlets
runners
tubers
tiny plants that grow on the edges of a plant's leaves
[ Choose ]
plantlets
runners
tubers
above ground stems that can develop new plants
[ Choose ]
plantlets
runners
tubers
strawberries
[ Choose ]
plantlets
runners
tubers
Answer:
A. Tuber is refer to as specialized storage stem of certain seed plants. Tubers are usually short and thickened and typically grow below the soil. So the patato is tuber.
Define aseˣual reproduction?Aseˣual reproduction is a type of reproduction that does not requires the union of seˣ cells or gametes.
B. a small or young plant is known as plantlet.
C. Plant runners are stem-like growths extending from a mother plant's growing point, such as a strawberry's crown.
For more information regarding aseˣual reproduction, visit:
https://brainly.com/question/423209
#SPJ2
how are most antibiotics used in the US? A. To treat human disease B. To keep food-producing farm animals healthy C. To treat domestic pets D. To cure diseases in food-producing animals
Answers
Answer:
your answer wil be a.
Explanation:
What PERCENT of a km is 234m?
Answers
Divide the length value by 1000
How do dating methods of geological evidence prove the convolution of earth systems?
Answers
Answer:
because it can tell you how old a segment of rock is and what type of minerals are in the segment of rock
Explanation:
Cross a heterozygous brown eyed father with a blue eyed mother. What percentage of the children will have brown eyes?
A) 25%
B)100%
C)75%
D)50%
Answers
what is the main way viruses cause diseases in the body?
Answers
Which of the following is a true description of the green alga Spirogyra sp.?
Select one:
a. The alga has a branched, multicellular, filamentous habit.
b. The chloroplast with its pyrenoids is arranged spirally throughout each filament.
c. Most of the interior of each cell is occupied by cytoplasm.
d. Gametic meiosis takes place via the process of conjugation between filaments.
Answers
please help me on the first one (highlighted)
Answers
Answer:
Change in water source
Explanation:
officials from Flint, Michigan switched the city's water supply to the Flint River as a cost-cutting measure for the struggling city, and they unwittingly introduced lead-poisoned water into homes.
Power plants (especially fossil-fuel based coal and gas-fired units) are frequently mentioned sources of environmental problems. List three specific types of outputs to the environment resulting from these fossil plants. Which other parts of the life cycle of producing electricity from fossil plants also contribute to these problems
Answers
Answer:
Effects of Conventional (fossil fuels & gas fired) power plants : Air pollution, Water Pollution, Land Degradation
Explanation:
Fossil power plants, that use fossil fuels for electricity generation, have various ill environmental effects
Air Pollution - Coal Power Plants emit many polluting gases into environment. Like Sulphur Dioxide, Carbon Monoxide etc, Nitrogen Oxides. The last gas is majorly emitted during process of nitrogen combustion.
Water Pollution - Coal washing process before placing it in boiler (for heat generated electricity) , circulates the same unclean water into water bodies & groundwater.
Land Degradation - The after process disposal mechanism implies untreated water & air pollutants released indiscriminately. This adversely effects the land quality & the wildlife.
What is the approximate population of humans on Earth now?
A. 1 billion
B. 6 billion
C. 3 billion
D. 60 billion
Answers
Answer:
b. 6 billion
Explanation:
Answer:
7 billion people is the answer not 6
How was Hawaii formed, and how does this provide evidence for convection happening?
HELP PLEASE
Answers
By many volcanic eruptions eventually forming an island.
Which of these technologies may have a positive effect on fish supply worldwide?
fish farming
tracking technology
bottom trawling
bigger fishing boats
Answers
Answer:
tracking technology
Explanation: