Answers
Answer:
1.C
2.A
3.B
Explanation:
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Related Questions
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.
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
What is the layer under the Lithosphere called?
Answers
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
Biodiversity in the Amazon rainforest will most likely?
Answers
Answer:
In the future, the Amazon rainforest's biodiversity will decrease unless something is done about the mass destruction of habitats and deforestation at the rate of 40 football fields a minute. Biodiversity is the variation of organisms (plants, animals and bacteria) in the world or in a specific habitat.
Explanation:
A pure-breeding, tall pea plant with white flowers is crossed with a pure-breeding, short plant with red flowers. The F1 plants are tall, with red flowers. When allowed to fertilize themselves, these produce the following F2: 326 tall, red; 104 tall, white; 117 short, red; and 29 short, white. You are conducting a Chi-Square analysis and what is the null hypothesis?
Answers
Answer:
Null Hypothesis -
The observed frequency is approximately equal to the expected frequency of phenotype.
Explanation:
Pure Breeding Cross - TTww x ttWW
Genotype of offspring in F2 generation - TtWw
Null Hypothesis -
The observed frequency is approximately equal to the expected frequency of phenotype.
The chi square analysis is attached
The degree of freedom for this question is 3
The p value for X^2 estimated through chi square test is 0.5
Hence the null hypothesis is accepted.
A pea plant with purple flowers and green pods is crossed with a plant that has white flowers and yellow pods.All the offspring have purple flowers and green pods .If two of these F1 are crossed what phenotypes will be seen in the F2 generation
Answers
Answer:
in the next generation 75% of the plants will have purple flowers and 25 percent will have white flowers
Also 75% of the flowers will have green pods and 25% of the flowers will have yellow pods
Explanation:
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.
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Light-skinned people generally have a greater proportion of which pigment in their skin?
Keratin
Pheomelanin
Eumelanin
Carotene
Answers
Answer:
Pheomelanin
Explanation:
Dark-skinned individuals produce more melanin than those with pale skin.
Light-skinned people typically have a greater proportion of pigment in their skin Pheomelanin, Dark-skinned persons produce more melanin than those with pale skin.Thus, option "B" is correct
What is the difference between pheomelanin and eumelanin?
Eumelanin is black or brown tint and pheomelanin is red or yellow pigment.
Individual who create lots of pheomelanin tend to have lighter skin, often because of freckling.
Freckles occur when melanocytes clump together. Melanocytes are generally scattered rather evenly in the skin.
Thus, option "B" is correct, Dark-skinned individuals produce more melanin than those with pale skin.
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Which of the following describes the different classifications of consumers in an ecosystems.
A. Herbivores eat producers. Carnivores eat other consumers. Omnivores eat producers and other consumers.
B. Herbivores are always plants. Carnivores are always animals. Omnivores are always humans.
C. Herbivores are tertiary consumers. Carnivores are primary consumers. Omnivores are also primary consumers.
D. Herbivores only live in aquatic ecosystems. Carnivores and omnivores only live in terrestrial ecosystems.
Please Answer fast!
Answers
Answer:
Herbivores are tertiary consumers. Carnivores are primary consumers. Omnivores are also primary consumers.
Explanation:
we got three types of consumers :
primary consumers secondary consumers tertiary consumersThe correct answer is C. Herbivores are tertiary consumers. Carnivores are primary consumers. Omnivores are also primary consumers.
There are 4 types of consumers :
1. Omnivores are also primary consumers.
2. Carnivores are primary consumers.
3. Herbivores are tertiary consumers.
4. Decomposers are known to be fungi, bacteria, invertebrates.
What are ecosystems?An ecosystem is an area where all living organisms including plants, animals, Homosapiens, microorganisms. It also has abiotic and biotic factors.
Hence concluded that C. Herbivores are tertiary consumers. Carnivores are primary consumers. Omnivores are also primary consumers, which describes the different classifications of consumers in ecosystems.
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(L1) The plasma membrane of a cell is selectively permeable (or semi-permeable), which means it
A.controls all cellular activities.
B.is responsible for asexual reproduction.
C.allows some materials to pass.
D.has a carbohydrate foundation,
Answers
Answer:
C. Allows some materials to pass.
Explanation:
Answer:
c
Explanation:
Being selectively permeable means that it selects what comes in and what goes out.
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.
2. A man has type A blood and his wife has type B blood. A physician types the blood of their four children
and finds that each of the children has a different blood type. What are the genotypes of the parents? How
would you explain that all four blood types could be represented by these four children?
Answers
Answer:
A person with type A blood receiving a transfusion of type B or AB blood would have an ABO incompatibility reaction. In an ABO incompatibility reaction, your immune system attacks the new blood cells and destroys them. If you have type AB blood, you have both A and B antigens .
hope it will help . please mark me as brainlistLeona drew a diagram to compare ginkgoes and conifers.
Which characteristic belongs in the area marked X?
are deciduous
produce cones
look like palm trees
are the largest group
Answers
Answer:
A. are deciduous
Explanation:
Ginkgo trees are broadleaf trees or deciduous trees.
Answer: The answer is A .Are deciduous
Explanation:) Hope this helps brainliest would be appreciated
:);):);)
Well-known persistent organic pollutants (POPs) such as Aldrin, DDT, and PCBs are all __________.
a.
banned in the United States
b.
commonly used herbicides in the United States
c.
restricted in the United States
d.
by-products of acid rain
e.
none of the above
Answers
Answer:
A, banned in the United States
Explanation:
I looked up "Is Aldrin banned in the US?", "Are PCBs banned in the US?", etc. They're all banned.
Using the following table what are food groups present in a chicken ? (Check ALL correct answers
1 Protein
2Starch
3Sugar
4Fats
Answers
Answer:
protein and fats is the answer
Answer:
protein and fats
Explanation:
Because that is what ppl take in the gym protein shake
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
Which statement correctly describes an interaction between organelles in the model?
A
Letter U and letter S control the collection and release of waste from the cell.
В.
Letter T and letter R store the genetic material necessary for replication of the cell.
ОООО
C
Letter Q and letter S are responsible for creating and delivering nutrients throughout the cell.
D
Letter U and letter R are involved with the processes of transcription and translation for the cell.
Answers
Answer:
B) letter T and letter R store the genetic material necessary for replication of the cell
T-nucleus and R-mitochondria
The statement that correctly describes an interaction between organelles is : ( D ) Letter U and Letter R are involved with the processes of transcription and translation for the cell.
Letter U represents the Nucleus of the plant cell model attached while the Letter R represents the cytoplasm of the cell model.
The nucleus of a cell contains the genetic material ( DNA ) of the cell while the cytoplasm fills up the cell and is enclosed by the plasma cell membrane of the cell. Transcription involves the synthesis of RNA from a DNA template contained in the Nucleus and this process involves, The nucleus and cytoplasm of a cell.
Hence we can conclude that The statement that correctly describes an interaction between organelles is : ( D ) Letter U and Letter R are involved with the processes of transcription and translation for the cell.
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Question 10
6.7 pts
Which of the following most likely happens in the cells of a person running a
marathon?
The respiration rate increases to produce more ATP.
The cell division rate increases to produce more muscle fibers
The photosynthesis rate increases to produce more sugars
The replication rate increases to produce more DNA
Answers
Answer:
The respiration rate increases to produce more ATP.
Explanation:
Running requires energy so the cells need to make more ATP through cellular respiration.
What is something you learned about movement across the membrane
Answers
Answer:
Membrane transport is essential for cellular life. As cells proceed through their life cycle, a vast amount of exchange is necessary to maintain function.
Explanation:
Albinism is a somatic recessive condition resulting from the inability to produce the dark pigment melanin in skin and hair. A man and woman with normal skin pigmentation have two children. The man has one albino parent; the woman has parents with normal pigmentation, but an albino brother. a. What is the probability that at least one of the children is albino
Answers
Answer:
There is 1/6 of the probability that at least one of the children is albino.
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files.
What is the energy-rich molecule that is released during cellular respiration?
Answers
Answer:
ATP, or adenosine triphosphate
Explanation:
Which of these are the 4 requirements for natural selection to occur?
Variation in populations
Equal access to resources
Adaptations
Overproduction of offspring
Traits are heritable
Sexual reproduction
Variation in reproductive success
Mutations
Answers
Answer:
four requirements for natural selection are given below:
Mutations
Variation in reproductive success
Sexual reproduction
Adaptations
Explanation:
Select the correct answer.
Why will a decrease in pH of the stomach affect protein digestion?
OA. Decrease in pH of the stomach will distort the structure of peptides in food, which affects the action of the enzyme pepsin.
O B. Decrease in pH of the stomach will distort the active site of the enzyme pepsin, which affects its
action.
O C. Decrease in DH of the stomach will distort the active site of the enzyme lipase, which affects protein digestion. Yes
Answers
Answer:
cats
Explanation:
n
why are plastids called kitchen of the cell
Answers
Answer:
Plastids are known as kitchen of a cell because some kinds of plastids (chloroplasts) play a vital role in the process of photosynthesis in which plants make their own food by sunlight,water and nutrients.
Explanation:
I hope this helps!
Answer:Plastids are known as kitchen of a cell because some kinds of plastids (chloroplasts) play a vital role in the process of photosynthesis in which plants make their own food by sunlight,water and nutrients, which makes it more better for animals to eat. And the plant provides healthy nutrients for them.
What are the solutions of water pollution
Answers
Answer:
•Water conservation
•plastic waste reduction
•Stormwater management
•Green agriculture
what is the main way viruses cause diseases in the body?
Answers
please help i’ll mark u as the brain thing !!
2. Lines 25–33: What examples of sentence structure and wording help create the style of this essay? Are the sentences long and filled with details, or are they short and crisp? Is the grammar formal or informal? Give an example.
Answers
Answer:
There are many important pieces that together make up a writer's style; like tone, word choice, grammar, language, descriptive technique, and so on. Style is also what determines the mood of a piece of literature, so its importance is huge across all genres.
Explanation:
Does this help at all??
If you were to start at the base of a mountain and climb it all the way to the top, how would the climate change?
A The climate would get colder and drier as you go up the mountain.
B The climate would get warmer and wetter as you go up the mountain.
C The climate would stay the same because you are in the same climate zone.
D The climate would be similar to a tropical climate zone as you go up the mountain.
Answers
C
Explanation:
It’s easy
The climate would get colder and drier as we go up the mountain. So, the correct option is A.
What is the effect of altitude on the atmosphere?When altitude increases, the amount of gas molecules in the air decreases, so the air becomes less dense than air closer to sea level, which is what meteorologists and climbers mean by "thin air". Thinner air exerts less pressure than air at lower altitudes.
Most of the gas molecules in the atmosphere are pulled closer to the Earth's surface by gravity, so gas particles are denser near the surface, so with more gas particles in a given volume, there are more collisions of particles and therefore more pressure.
Thus, the climate would get colder and drier as we go up the mountain. So, the correct option is A.
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What’s the answer to this pls