PLEASE HELP! TIME LIMIT! In fruit flies the allele for long wings (L) is dominant and the allele for short wings (l) is recessive. What is the likely genotype of a fruit fly with long wings? Either LL or Ll Either Ll or ll Only LL Only ll
Answers
Answer:
Mate with an Ll. If about 25% offspring are short-winged, it is also Ll. If none, it is LL.
Explanation:
Related Questions
When the two white ducks are crossed,will they produce only white duckling
Answers
If the color white is the dominant trait, then their offspring will be white as well.
What happens when the body releases prespiration
Answers
Answer:
It's called sweating. Your body releases water on your skin, which then evaporates in order to cool down to the normal temperature of 98.6 degrees. Sweat is 99% water combined with a small amount of salt, proteins, carbohydrates and urea,
Explanation:
Which two body systems are interacting in the diagram?
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Answer:
Where is the diagram pls?
Brain list if answered
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1) Independent variable - Presence or absence of growth hormone
Dependent variable = weight of the animals.
2) Independendent variable - presence or absence of mosquito repellent
Dependent variable - Number of mosquito bites
3) Independent variable - type of water
Dependent variable - mass
What is an experiment?An experiment is used to establish the relationship between the independent and the dependent variable. The independent variable is the variable that we have to manipulate as we carry out the experiment. As we change the independent variable, the value of the dependent variable changes also.
Let us now see the dependent and independent variable n all the three cases;
1) Independent variable - Presence or absence of growth hormone
Dependent variable = weight of the animals.
2) Independendent variable - presence or absence of mosquito repellent
Dependent variable - Number of mosquito bites
3) Independent variable - type of water
Dependent variable - mass
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if an aa individual is crossed to an aa individual, what will be the phenotypic ratio in the offspring? 2:1 1:1 4:0 3:1 1:1:1:1
Answers
If an aa individual is crossed to an aa individual, the phenotypic ratio in the offspring will be 1:1. When both the parents are homozygous recessive, they will pass on only recessive alleles to their offspring.
What is a phenotype?Phenotype refers to the physical or observable traits of an organism, which are determined by the expression of its genes.
These traits may include characteristics such as eye color, hair color, height, and skin color, among others.
Therefore, if an aa individual is crossed to an aa individual, the phenotypic ratio in the offspring will be 1:1. When both the parents of the offspring are homozygous recessive type, then they will pass on only the recessive alleles to their offspring, resulting in a 1:1 phenotypic ratio.
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What are the genotypic and phenotypic distributions for the F1 and F2 generations from a cross between a chick with black (BB) feathers and chicken with white (WW) feathers if the color is determined by alleles that show codominance. The heterozygote is an erminette chicken, which is black and white speckled.
Answers
Answer:
Please find the punnet square to this question as an attachment
F1 generation:
genotype = BW
Phenotype = Erminette offsprings
F2 generation:
genotype = BB (1): BW(2): WW(1)
Phenotype = 1 Black, 2 Erminette, 1White
Explanation:
This question involves a gene coding for feather color in chickens. The allele for black feathers (B) is codominant with the allele for white feathers (W) to form an erminette chicken (black and white speckles).
According to this question, a cross between a chick with black (BB) feathers and chicken with white (WW) feathers will result in an all erminette chicken (BW) in the F1 generation (see attached image)
Also, in the F2 generation got by self-crossing the Erminette genotype in the F1 generation (BW), the following genotypic and phenotypic ratios are observed:
Genotypic ratio = BB (1): BW(2): WW(1)
Phenotypic ratio = 1 Black, 2 Erminette, 1White
Plz ANWSER BOTH
10. If the Moon were directly over the North Pole, what would you expect the tide
to be like along the equator?*
high tide
low tide
O neap tide
Ospring tide
11. A coastal town will experience --- high tides per day.*
one
o
two
three
ОО
four
M
Answers
Explanation:
first one is be the second one is d
in avery, macleod and mccarty's experiment, what enzyme was present in the mixture of r & s strains, that when injected into the mice did not result in death?
Answers
In Avery, MacLeod, and McCarty's experiment, the enzyme present in the mixture of R and S strains that did not result in the death of mice was DNase. This enzyme breaks down DNA, preventing transformation.
Avery, MacLeod, and McCarty conducted their experiment to determine the substance responsible for transforming nonvirulent bacteria (R strain) into virulent bacteria (S strain). They treated the mixture of R and S strains with different enzymes, including protease (which breaks down proteins), RNase (which breaks down RNA), and DNase (which breaks down DNA). When the mixture was treated with DNase, the transformation process was halted, and the mice remained alive. This indicated that DNA was the primary substance responsible for the transformation.
This groundbreaking experiment provided strong evidence that DNA, not proteins or RNA, is the genetic material responsible for the inheritance of traits. The DNase enzyme played a crucial role in this discovery, as its presence in the mixture of R and S strains prevented the transmission of virulent traits and demonstrated the importance of DNA in the process of transformation.
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The concentration of glucose in the blood at P, and in the fluid at Q, is 0.1 per cent. The concentration of glucose in the fluid at R is 0.0 per cent.
Use information from the diagram, and your own biological knowledge, to explain the change in glucose concentration from point P through to point R.
Answers
Answer:
Explanation:The change in glucose concentration from point P to point R can be explained by the process of diffusion. Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration.
At point P, the concentration of glucose in the blood is 0.1 percent. This means that there is a higher concentration of glucose in the blood compared to the surrounding fluid. Due to the concentration gradient, glucose molecules will tend to move from the blood to the surrounding fluid through diffusion. As a result, glucose molecules will diffuse from point P towards point R.
As the glucose molecules move from point P towards point R, they will continue to spread out and mix with the surrounding fluid. At point Q, which is between P and R, the concentration of glucose in the fluid will increase due to the diffusion of glucose from the blood. However, the concentration at point Q will still be lower than the initial concentration at point P.
As the glucose molecules continue to diffuse towards point R, the concentration gradient decreases. Eventually, at point R, the concentration of glucose in the fluid is 0.0 percent. This means that all the glucose molecules have diffused from the blood and mixed with the fluid, resulting in an equal concentration of glucose in the blood and the fluid at point R.
In summary, the change in glucose concentration from point P to point R is due to the process of diffusion, where glucose molecules move from an area of higher concentration (point P) to an area of lower concentration (point R) until equilibrium is reached.
At point P, the concentration of glucose in the blood is 0.1 per cent, which is the same as the concentration in the fluid at Q. This suggests that at point P, glucose is freely filtered from the blood into the glomerular filtrate without being selectively reabsorbed. Therefore, the concentration of glucose remains constant from point P to point Q.
However, at point R, the concentration of glucose in the fluid is 0.0 per cent. This indicates that glucose has been selectively reabsorbed from the glomerular filtrate back into the blood. In the renal tubules, specialized transporters actively reabsorb glucose molecules from the filtrate and transport them back into the bloodstream. This process ensures that glucose, which is an important energy source for the body, is retained rather than being excreted in the urine.
The change in glucose concentration from point P to point R is due to the selective reabsorption of glucose in the kidneys. As the glomerular filtrate passes through the renal tubules, glucose is actively transported back into the bloodstream, leading to a decrease in its concentration from point P to point R. This mechanism helps maintain a stable blood glucose level and prevents the loss of valuable energy resources.
true or false
the chromosomes of the body cells are paired?
Answers
Answer:
The answer is True.
Explanation:
We have 23 paired chromosomes.
Answer:
True
Explanation:
Because, all chromosomes of body cells are found in pairs.
What is meant by natural variation in living things? *
Different species have different attributes.
Different individuals within a species have variation because they may express
different alleles for the same traits.
All the possible trait variations of a single population.
The number of organisms a given area will support.
Answers
Answer:
Different individuals within a species have variation because they may express
different alleles for the same traits
The extensive capillaries in a capillary bed create an increase in the total surface area of these blood vessels, which results in ______.
Answers
The extensive capillaries in a capillary bed create an increase in the total surface area of these blood vessels, which results in slower blood flow through capillaries.
Capillaries are intricate and tiny vessels of blood that are found throughout the human body.
Substances such as fluids. liquids and moisture pass through the capillary wall by osmosis, diffusion, and filtration.
A sufficient amount of osmotic and hydrostatic pressure determines the intensity of fluid movement across the wall.
Moreover, they also carry nutrients, oxygen, and other fluids to all the cells of the body system.
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Boojho while waving his hand very fast in front of his eyes, observes that his fingers appear blurred. What could be the reason for it?
Answers
Answer:
The persistence of vision is the reason for the blurred vision of Boojho while waving his hand very fast in front of his eyes, observes that his fingers appear blurred.
Explanation:
The impression of an image does not fade from our retina instantaneously but rather remains for 1/16th of a second. If we move our hands quicker than this, it will appear as if they are moving in a blurred manner. This is what is happening with Boojho, as his fingers are becoming blurred as a result of his hand’s fast movement.
5. A dedicated earth science student using
an aneroid barometer measures the air
pressure at the base of Slide Mountain
as 1016.0 mb. At the same time another
dedicated earth science student measures
the pressure at the top of the mountain.
Which pressure reading could be correct
at the top of Slide mountain?
(1) 1016.0 mb (3) 1025.7 mb
(2) 988.5 mb (4) 1040.0 mb 5
Answers
Answer:
(2) 988.5 mb.
Explanation:
The air pressure descends as we ascend. In other words, they are inversely proportional.
The air pressure descends as we ascend the mountain because the air molecules that are above us in high altitudes are fewer than the number of air molecules that are above us in the base of the mountain. So, the exerted pressure of the molecules on ourselves is lower in high altitudes.
Due to the reason mentioned above, we can deduce that the only correct option is option number two since the other ones show increasing or the same pressure, which is not possible as we ascend.
A barometer is an instrument that is designed for measuring the changes in air pressure.
The aneroid barometer has metal chamber as when the air pressure increases the walls of metal push in and when the pressure is low they come out. The chamber is connected by the springs and needle. If the pressure of the base of a mountain is about 1016.0 MB. The pressure of the top of the mountain is 1025.7 MBHence the option 3 is correct.
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mutations aremultiple choice question.quickly reversed by a change in the allele frequencies.caused by allele frequencies being unbalanced.genetic changes.
Answers
Mutations are genetic changes that occur in the DNA sequence of an organism's genome. The correct answer is option c.
They can arise due to errors in DNA replication, exposure to mutagenic agents such as radiation or certain chemicals, or spontaneous changes in the DNA structure. Mutations introduce variations in the genetic code, leading to differences in the traits and characteristics of individuals.
Mutations are not quickly reversed by a change in allele frequencies. Allele frequencies refer to the relative proportions of different versions of a gene within a population. While mutations can influence allele frequencies over time through processes like natural selection, genetic drift, or migration, reversing a specific mutation requires additional genetic changes or mechanisms such as DNA repair.
Mutations can contribute to the genetic diversity of a population and serve as the raw material for evolution. They provide the basis for the introduction of new traits and adaptations, which can influence the survival and reproductive success of individuals in changing environments.
The correct answer is option c.
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Complete Question
mutations aremultiple choice question.
a. quickly reversed by a change in the allele frequencies.
b. caused by allele frequencies being unbalanced.
c. genetic changes.
a target cell that is affected by a particular steroid hormone would be expected to have
Answers
A target cell that is affected by a particular steroid hormone would be expected to have specific receptors that are capable of recognizing and binding to the hormone.
Steroid hormones are lipids that are able to pass through the cell membrane and bind to intracellular receptors located in the cytoplasm or nucleus of the target cell.
Once the hormone binds to its receptor, it can then enter the nucleus and affect gene expression, leading to changes in cellular function and behavior.
The specific effects of steroid hormones on target cells depend on the type of hormone, the receptors present on the cell, and the downstream signaling pathways activated.
For example, estrogen can bind to receptors in breast tissue and promote cell division and growth, while cortisol can bind to receptors in the liver and regulate glucose metabolism. The response of a target cell to a steroid hormone can also depend on the concentration of the hormone present in the bloodstream and the duration of exposure.
Overall, a target cell that is affected by a particular steroid hormone would be expected to have specific receptors and downstream signaling pathways that allow for the hormone to produce its physiological effects.
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HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP ASAP
Answers
Answer:
it should be the 1st or the second one
Answer:
I think that it is that it would be the last one.
Explanation:
It seems to make the most sense. If the coastal city is using an aquifer and they undergo a drought, people will use more water. The more water used, the higher the risk.
in your botany study group, you are reviewing the anatomy of fruits and vegetables. one of your classmates states that a melon is a fruit because it has a sweet taste. how should you respond?
Answers
Botany, also called factory wisdom, is the study of the factory world and is a branch of biology. I'll answer as agreed, because melon is a fruit because it's sweet.
Botany is the scientific study of shops how shops serve, what they look like, how they're related, where they grow, how humans use shops, and how shops evolved.
The lores of husbandry, horticulture and forestry arose from the foundations and discoveries of botany. Botanists interested in ecology study the relations of shops with other organisms and the terrain.
Other botanists in the field are probing new species or conducting trials to find out how shops grow under different conditions. Some botanists study the structure of shops.
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Which mineral mostly forms through chemical precipitation?
O A. Clay
• B. Salt
• C. Aluminum
O D. Silicon
Answers
Answer:
The answer to your question is • B. Salt
Explanation:
The rain that falls on the land contains some dissolved carbon dioxide from the surrounding air. This causes the rainwater to be slightly acidic due to carbonic acid. The rain physically erodes the rock and the acids chemically break down the rocks and carries salts and minerals along in a dissolved state as ions.
I hope this helps and have a wonderful day!
Roughly what soil temperature do most soil organisms prefer?
Answers
Answer: Most soil organisms function best at the same temperatures people are comfortable at, or more specifically, in the 70s or low 80s F.
Ten Discussion Questions1.Which number is beside the waxy covering of this flower? (image 1)2. Which number is beside the pistil of this flower? (image 1)3.What are the reproductive organs of a plant called?4. What are the reproductive organs of an animal called?5. What is an exoskeleton and explain its function?6. How are the support systems of plants and animals different?7. How is the function of a plant's waxy covering similar to the function of a cat's hair?8. How is the function of a plant's pistil and stamen different from the function of the ovariesand testes of an animal?9. Name one plant and one animal and explain a similarity between the function of theirorgans or physical structures.10. Name one plant and one animal and explain a difference between the function of theirorgans or physical structures.
Answers
Parts of the flower:
1. pistil
2. petal
3. leaf
4. receptacle or stem (location of number is not clear)
Answer to question 1 is receptacle or stem.
Answer to question 2 is petal
Answer to question 3
The reproductive organs of the plant are stamen, stigma, calyx, pistil, and colas.
Stamen is the male part of a flower. Stigma is responsible for collecting pollen grains. Calyx is a component of sepals and responsible for protecting the inner part of the flower while it is under development. Pistil is the female reproductive part of the flower. Cola is the bud. It is a cluster of buds. In general, the reproductive parts are the androecium (group of stamens) and gynoecium (carpels/pistils).
what are the two types of pressure?
Answers
I need help with this practice problem What are some distinctive and notable characteristics of Kudzu ?
Answers
The perennial climbing vine known as kudzu belongs to the pea family. A woody, deciduous vine that can grow up to 25 cm (10 inches) in diameter, change yellow-green to gray.
What affects humans does kudzu have?In Chinese medicine, the herb kudzu is used to cure a variety of conditions, including diabetes, menopausal symptoms, alcoholism, fever, and common cold, and neck and eye pain. It is occasionally combined with other herbs. Kudzu may have anti-inflammatory and neuroprotective qualities, according to laboratory studies.
Is kudzu dangerous to people?The consumption of kudzu may cause liver damage. Kudzu should not be consumed by those who have liver disease or even a history or liver disease. Surgery: Kudzu may have an impact on blood sugar levels and it may hinder blood sugar regulation both during and following surgery. Stop using kudzu at least two weeks before an upcoming procedure.
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the _______ are the key supply source of energy for neurons.
Answers
The mitochondria are the key supply source of energy for neurons. These organelles are responsible for generating ATP, the molecule that powers cellular processes and provides the necessary energy for the neurons to carry out their functions.
ATP production occurs through a process called cellular respiration, which takes place in the mitochondria.
Neurons are highly specialized cells that require a constant supply of energy to maintain their functions, including communication with other neurons and processing of information. This energy demand is met by the mitochondria, which are abundant in neurons due to their high energy requirements. The number of mitochondria in a neuron can vary depending on its activity level, with more active neurons having a higher number of mitochondria to meet their increased energy needs.
In addition to ATP production, the mitochondria also play a critical role in other cellular processes, such as calcium homeostasis and apoptosis. Dysfunctional mitochondria have been implicated in a range of neurodegenerative diseases, highlighting the importance of these organelles in maintaining neuronal health. Overall, the mitochondria are crucial for the energy metabolism of neurons and are essential for their proper functioning.
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Use examples to explain how the geosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete sentences. HELPPPP
Answers
Answer:The interaction between Geosphere, atmosphere and hydrosphere: Geosphere interact with various spheres of earth and help in various cycles of element and performing different processes. One of the examples of such interaction is the geosphere interacts with the atmosphere and hydrosphere when a volcano erupts.
A volcano is a structure or the part of the geosphere which releases lava and particulate matter into the atmosphere where it plays a role as a center particle or nuclei for the water droplets which is come down into river and land in the form of rainfall which is a part of the hydrosphe
pls give me a branlest
I need helo with one please help and if you can do number 2 that would be good please help
Answers
Answer:
1.
✔Deep sea trenches
✔Mountains
✔Faults
2.
B. It is an ancient supercontinent
Explanation:
The above answers are correct.
The convergent plate boundary is known to be an area on Earth where subduction occurs. It is a place where two or more lithospheric plates collide. This convergent plate boundary is characterized by deep ocean trenches, island arcs, mountain ranges, faults and volcanoes.
Pangaea is known to be a supercontinent that actually incorporated almost all the earth's landmasses and it is said to have existed during the late Paleozoic and early Mesozoic eras. It is revealed that over 150 million years the supercontinent began to break apart.
In studying the graphic below, what can you tell about the habitat in which the Balochistan walking whale lived in, in relation to the killer whale's habitat? Use the bones in the image to support your answer (which means EXPLAIN!!).
Answers
Answer:
Killer whales are found in all oceans. While they are most abundant in colder waters like Antarctica, Norway, and Alaska, they are also found in tropical and subtropical waters. The most well-studied killer whale populations occur in the eastern North Pacific Ocean.
Explanation:
Which two statements explain why water is vital to sustaining a healthy ecosystem?
A. Water enables energy to move through all of Earth's systems.
B. Autotrophs need water in order to make oxygen gas and sugars from inorganic matter.
C. Water molecules consist of atoms of hydrogen and oxygen.
D. All of Earth's heterotrophs depend on water as a source of energy for life processes.
Answers
The statements autotrophs need water in order to make oxygen gas and sugars from inorganic matter and all of Earth's heterotrophs depend on water as a source of energy for life processes explain why water is vital to sustaining a healthy ecosystem (Options B and D).
Why water is fundamental to sustaining life on earth?Water is fundamental to sustaining life on earth because all organisms are mostly composed of water, which is primarily used during photosynthesis in order to generate sugar molecules.
Therefore, with this data, we can see that water is a fundamental element capable of sustaining life on earth.
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Answer:
a and b
Explanation:
I got it correct thank you
According to the chemiosmotic mechanism, what is the direct source of the energy used to synthesize ATP from ADP in chloroplasts and in mitochondria
Answers
Answer:
NADPH2
Explanation:
nicotinamide adenine nucleotide phosphate
Identify the chromatids and the centromere of a chromosome.
Answers
Answer:
Chromatid refers to one half of the chromosome. Centromeres are the center of the chromosomes, where spindles attach during mitosis.