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Related Questions
What is brine rejection?
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Answer:
Brine rejection is a process that occurs when salty water freezes.
Explanation:
You have crossed two Mexican hairless dogs, and the offspring are 1/3 hairy and 2/3 hairless. Given this phenotypic ratio, draw the Punnett square for this cross. Indicate the phenotype for each of the possible offspring. What are the genotypes of the P1 and F1 dogs in this crosList the predicted genotype as well as the phenotype for each of the offspring. Which genotypes are hairless and which are hairy? List the predicted genotype as well as the phenotype for each of the offspring. Which genotypes are hairless and which are hairy? Can you design a genetic cross that would yield a true breeding hairless line-where all offspring is hairless?
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Answer:
- Punnett square:
H - h
H - HH (lethal) Hh (hairless)
h - Hh (hairless) hh (hairy)
- Cross: Hh × Hh (all genotypes are Hh)
- Genotypes of the P1 dogs: heterozygous (Hh)
- Genotypes of the F1 dogs: 1/3 hh; 2/3 Hh
- It is not possible to design a cross where all offspring are hairless because the H allele for hairless is lethal in homo-zygous condition (the maximum possible is 2/3 hairless individuals)
Explanation:
As you can see in the Punnett square above, the 1:2 ratio (i.e., 1/3 hairy and 2/3 hairless) is indicative that the hair phenotype is a single (monogenic) trait associated with a lethal allele (H allele). In this case, it should be impossible to design a true-breeding cross because the homo-zygous HH genotype is lethal. Alleles that cause the death of an organism are known as lethal alleles (in this case, the H allele). A recessive lethal allele is only lethal in the homo-zygous individuals, thereby heterozygous individuals survive and they may exhibit a normal/altered (non-lethal) phenotype.
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PLZZ HELP ME !!!
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Answer:
the answer is in picture
Which of the following statements explains how N-formylmethionine (fMet) is only associated with the 5' AUG initiation codon and not with internal AUG codons, given that methionine in both cases in encoded by an AUG in the mRNA. Select all that apply. Group of answer choices Only fMet-tRNA(fMet) can bind first to the P site in the ribosome. There are more than one tRNA with the 5' CAU 3' anticodon. fMet is always incorporated at interior AUG sites and then deformylated after translation. The N-formyl group attached to methionine prevents fMet from entering interior positions in a polypeptide.
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Answer:
Only fMet-tRNA(fMet) can bind first to the P site in the ribosome. ( A ) There are more than one tRNA with the 5' CAU 3' anticodon. ( B ) The N-formyl group attached to methionine prevents fMet from entering interior positions in a polypeptide. ( D )Explanation:
The statements that explains how N--formyl methionine (fMet) is only associated with the 5' AUG initiation codon and not with internal AUG codons, given that methionine in both cases in encoded by an AUG in the mRNA are :
Only fMet-tRNA(fMet) can bind first to the P site in the ribosome. ( A )
There are more than one tRNA with the 5' CAU 3' anticodon. ( B )
The N-formyl group attached to methionine prevents fMet from entering interior positions in a polypeptide. ( D )
While statement C is wrong.
Pregnancy comes with a unique set of diet and lifestyle guidelines. Some substances are particularly beneficial for the mother or baby, others are harmful, and some should be used with caution.
a. True
b. False
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Answer:
I believe it it A. True
Hope this helps
Answer:
a
Explanation:
the concentration of substances contained in e.g some medicines might be okay for a woman who is not expecting but the the impact is totally different to someone who has a baby growing in their uterus,this is so because babies are very delicate and reactive to strong chemicals
True or False
humans can survive longer without food than they can without water
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Answer:
False.
Explanation:
The human can typically go two to three days without water and 30 to 40 days without food.
I hope this helps, have a nice day.
Answer:
False
a human can go a month without food but cannot go a week without water
HELP PLS +10 BRAINLY POINTS
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Second one is Circulatory
Which of the methods of generating electricity shown below does NOT use alternative energy resources?
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Answer:
A.Please leave a 5-star rating and Thanks!Which term best deseribes a community in which people mostly grow crops? O A. Manufacturing O B. Hunting and gathering O C. Domesticated O D. Agricultural
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Answer:
Hello There!!
Explanation:
I believe the answer is D. Agricultural.
hope this helps,have a great day!!
~Pinky~
Describe what the plant looks like, including descriptions of any flowers or seeds, so that the farmer or rancher could identify the plant. Discuss the typical habitat for this plant. Where is this plant most likely to be found
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What is the function of gills and lungs in aquatic animals
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Answer:
Basically, gills filter the water around the animal and take in the small amount of oxegen mixed in the water. Lungs take in all of the air and almost half of it is oxgen and they can't go underwater for long. But since lungs are more efficient, animals with lungs can grow bigger than animals with gills
Explanation:
Answer:
Gills are evaginations of the body surface. Some open directly to the environment; others, as in fishes, are enclosed in a cavity. In contrast, lungs represent invaginations of the body surface. Many invertebrates use gills as a major means of gas exchange; a few, such as the pulmonate land snail, use lungs.
Explanation:
They're just their to help the fish breath
Which of the following is the best example of homeostasis in the human body?
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Answer:
Humans' internal body temperature is a great example of homeostasis. When someone is healthy, their body maintains a temperature close to 98.6 degrees Fahrenheit (37 degrees Celsius). Being warm-blooded creatures, humans can increase or decrease temperature internally to keep it at a desirable level
If organisms inherited traits via blending inheritance, rather than Mendelian inheritance, what would we expect the offspring (F1 generation) of a blue-flowered plant and a yellow-flowered plant to look like
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Answer:
green-flowered plants
Explanation:
In biology, blending inheritance refers to an erroneous theory from the XIX century, which proposed that the progeny (F1) inherits phenotypic traits as an average of parental phenotypic values. If this theory would be true then a crossing of a blue flower variety with a yellow variety of the same species would produce green-flowered progeny (since green is a combination of blue and yellow). Charles Darwin used pangenesis, a hypothetical mechanism for heredity that implied blending inheritance, in order to understand the transmission of hereditary characters. Darwin believed that different parts of the body generated heredity particles called 'gemmules' that aggregated in the gonads, and contributed to the transmission of heritable information to the next generation. The blending inheritance theory was replaced by Mendelian inheritance during the early 1900s.
In x linked recessive if the mother is carrier and father is normal and their first child is male and is affected the next child is female, how much chances are there that she will be carrier?
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Answer:
A 50% chance I believe. The mother will always give the X chromosome and since the father is normal and doesn't carry that ressecive trait they can only get it from the mother. (I'm not completely sure!))
Answer:
50%. 50%. False
Step-by-step explanation:
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Jose wants to measure his fingernail, what unit is he going to use?
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Answer: you can measure in metric
Explanation:
here is a file
The graph shows atmospheric carbon dioxide levels over time.
Which two observations are most useful for explaining the trends in the data? Select two answer choices.
A. Photosynthesis and cellular respiration have opposite effects on carbon dioxide levels.
B. Carbon is stored in solid form in shells, rocks, and sediments.
C. Atmospheric carbon dioxide may dissolve in ocean water.
D. The burning of fossil fuels adds carbon dioxide to the atmosphere.
E. Activities that produce or take up carbon dioxide vary with the seasons.
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Answer:
the answer is A and D
Explanation:
because yes
Cellular respiration and photosynthesis are significant carbon cycle processes. The processes via which carbon is recycled in the biosphere are known as the carbon cycle. Thus, option A, D is correct.
What is the effect of carbon dioxide to the atmosphere?
Unlike cellular respiration, which releases carbon dioxide into the environment, photosynthesis eliminates carbon dioxide from the atmosphere.
When fossil fuels are burned, a greenhouse gas called carbon dioxide is massively released into the atmosphere. Greenhouse gases, which trap heat in our atmosphere, are to blame for global warming.
Therefore, Photosynthesis and cellular respiration have opposite effects on carbon dioxide levels and the burning of fossil fuels adds carbon dioxide to the atmosphere.
Learn more about carbon dioxide here:
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Im currently taking my finals and I really need urgent help
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Hope this helps
Please give me Branliest
True or false. The cell's chromatin condenses into chromosomes during prophase.
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Answer:
False
Explanation:
Microtubules move chromatids to the poles of the cell during anaphase. Chromosomes reach the poles of the cell during metaphase. The cell's chromatin condenses into chromosomes during prophase. ... false, centrioles migrate to the poles of the cell during prophase.
which behavior is a response to an external stimulus
A. and elephant drinks water to be
B. child gets a fever to fight off the flu
C. a dog vomits during an illness to rid itself of pathogens
D. a turtle Suns itself on a rock on a cool day
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Answer:
D. a turtle Suns itself on a rock on a cool day
Explanation:
In guinea pigs, the color of the fur is determined by a single gene with two alleles control. The brown allele (B) is dominant over the white allele (b). Two heterozygous guinea pigs are crossed. Draw a genetic diagram with the genotypic, phenotypic and ratio information of the P₁ and F ₁ generations of this cross.
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Answer:
B b
B BB Bb
b Bb bb
Genotype:
ratio - 1:2:1
1 BB = 25%
2 Bb = 50%
1 bb = 25%
Phenotype:
ratio - 3:1
3 Brown: 75%
1 White:25%
HOpe this helps
please help with my biology
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Answer:
True
Explanation:
cancer cells are cells with unregulated cell growth or unchecked cell growth
The authors describe an important experiment in which scientists showed strong support for the hypothesis that bdelloid rotifers have reproduced asexually for millions of years. Briefly describe the results from their experiment that supported this conclusion
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Answer:
Bdelloid rotifers are small metazoans, a class of very small invertebrates that can visible through a microscope only. They reproduce asexually and found in temporary or permanent freshwater.
Bdelloid rotifers population shows only females in this population and Males not found yet, which suggests that females asexually produce identical progeny. The process called parthenogenesis. The organisms that sexually produced their DNA has two copies of the genome that may or may not be identical but in case of asexual reproduction, there are always identical copies produce.
Four Reasons why having environmental personal mission statement may enhance the environment?
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Answer:
here is you answer bro:
Personal mission statements are an important component of leadership and personal development. They force you to think deeply about your life, clarify its purpose, and identify what is truly important to you. Personal mission statements also force you to clarify and express as briefly as possible your deepest values and aspirations. It imprints your values and purposes in your mind so they become a part of you. Integration of your personal mission statement into your weekly planning is also a way to keep your vision constantly in front of you.
How can you create your personal mission statement and why is it important?:
Identify Some Past Successes. These successes can be personal or professional. Identifying a common theme is beneficial because it helps you identify what is important to you.
Identify Your Core Values. Development of this list should outline a list of attributes that you believe best identifies who you are as well as your priorities. Once you have completed this step, identify which value is most important to you. Some may like to narrow the list down to a few values before choosing just one.
Identify Your Contributions. Make a list of the ways you feel you could make a difference. How do you believe you can contribute to the world? Your family? Your employer? Your community? Your friends? Seeing your contributions detailed can help you best understand in what ways you would like to make a difference.
Identify Your Goals. Consider your priorities in life and the goals you have for yourself. Listing your personal short-term and long-term goals are valuable in this step.
Write Your Personal Mission Statement. This should now be easily completed based on the outcome of the first four steps.
Why is it important?
1. It integrates who you are.
2. Provides focus.
3. Simplifies any decision-making processes.
4.Holds you accountable for your decisions and actions.
Writing a personal mission statement is an act of self-discovery that can help us uncover things that we previously may not have otherwise known. Personal mission statements allow us to get to know ourselves better and discover our sense of purpose in life.
Get started on yours this weekend.
Explanation:
What is the rapid change in a membrane's potential caused by the depolarization of a neuron?
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Answer:
During depolarization, the membrane potential rapidly shifts from negative to positive. As the sodium ions rush back into the cell, they add positive charge to the cell interior, and change the membrane potential from negative to positive.
Explanation:
Briefly explain the characteristics of vertebrates?
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Answer:
A vertebrate is anything with a backbone. Mammals, Amphibians, Reptiles, Birds, and some fish. These organisms with a backbone would be categorized as Phylum Chordata. (Chordates, meaning chord, or spinal chord).
Explanation:
main component of protein
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Answer: April Cashin-Garbutt, MA, reviewed it (Cantab) Collagen is a protein composed up of amino acids, which are carbon, oxygen, and hydrogen molecules. Glycine, Proline, Hydroxyproline, and Arginine are among the amino acids found in collagen. Collagen makes up around a third of the proteins in the human body.
Explanation:
knowledge!
how many sens organs do we have
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Answer:
5 sense organs
Explanation:
Sense organs are the specialized organs composed of sensory neurons, which help us to perceive and respond to our surroundings. There are five sense organs – eyes, ears, nose, tongue, and skin. What are the Olfactory Organs?
Turns on the light which energy transfer happens
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When a light bulb is turned on, it is powered by electricity and manages to produce both light and heat. This is something as persons we know from experience. Thus when a light bulb is turned on, electrical energy is transformed into light and heat energy.
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10. Most cells are microscopic. Very few, like the eggs we eat, are visible to the unaided eye. Why have cells evolved to be small versus very large structures visible to the human eye
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Answer: Efficient functioning.
Explanation:
Cells require a lot of substances to both come into and leave the cell in order for the cell to accomplish it's functions. These substances can be anything from carbohydrates to water and they come into the cell through diffusion and osmosis.
The thing about diffusion however, is that it happens faster over shorter distances than longer distances. This is why cells are so small. They evolved to be that size to ensure that diffusion of these substances takes place relatively quickly so that they can use these substances to carry out their functions at a faster rate.
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