1. In human beings, a downward-pointed frontal hairline ("widow's peak") is a heritable trait. A
person with a widow's peak always has at least one parent who also has this trait, whereas
people with a straight frontal hairline may occur in families in which one or even both parents
have widow's peaks. When both parents have a straight frontal hairline, all children also have
a straight hairline. Using A and a to symbolize alleles for this trait, what is the genotype of an
individual without a widow's peak? (Show your work)
The genotype of an individual without a widow's peak would be aa.
A person with widow's peak has. at least a parent with the trait. When both parents have a straight frontal hairline, all the children also have a straight frontal hairline.The above features are indications that widow's peak is a dominant trait.
Since A and a are used to represent the alleles, AA or Aa will be the genotype of individuals with widow's peak while only aa will be the genotype of individuals with straight frontal hairlines.
In other words, individuals without a widow's peak will have aa as genotypes.
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What happens in your body if you are exposed to a virus for which you have
been vaccinated?
A. The altered virus recognizes the natural version of the virus and
destroys it.
B. Because the vaccination remains in your body, the altered virus outcompetes the natural version and you do not get sick.
C. The nonspecific immune response recognizes the invading virus and prevents it from entering the body.
D. Memory cells that develop in response to the vaccine recognize
the invading virus and respond quickly to destroy it.
Answer:
Explanation: A
Which of the following correctly describes one way that photosynthetic plants are involved in the carbon cycle?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Photosynthetic plants can move carbon from the atmosphere into an ecosystem’s food web.
(Choice B)
B
Photosynthetic plants move carbon-based molecules between consumers in an ecosystem.
(Choice C)
C
Photosynthetic plants break down the remains of organisms and release carbon dioxide into the atmosphere.
2. What are the three examples Arroyo gives for how we can prepare for the
massive impact climate change will have on all of us?
Answer:
She suggests doing three main things to prepare: adapting to violent storms and floods, preparing for heat and drought, and adapting to the rising seas by rebuilding and restructuring.
The three examples of Arroyo that gives an idea of the massive impact of climate change are adapting to violent storms and floods, preparing for heat and drought, and adapting to the rising seas by rebuilding and restructuring.
What is theory of Arroyo?According to this theory of Arroyo, the first step is to grow food crop varieties that are resistant to drought in order to feed the people that live in these arid areas.
Adopting conservation and protection measures for water sources comes ranked second. Others comprise;
Altruistic water use in residences, farms, and businesses
Utilizing alternative energy sources to cut down on greenhouse gas emissions
Therefore, Arroyo's three adaptation strategies—to ferocious storms and floods, scorching heat, and drought—as well as its rebuilding and reorganizing efforts in response to rising sea levels—all serve as illustrations of the significant effects of climate change.
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How can antiviral medications help someone who has the flu?
- helps the person sleep better so that they heal
- prevents the person from ever getting the flu
- makes the person feel better faster and makes the symptoms milder
- cures the person immediately (I know its not this one)
Answer:
Prevents the person from ever getting the flu. (better said as 'prevents attracting flu in the future")
Explanation:
Antiviral drugs are recommended for both treatment and prevention of flu. They can protect you from getting viral infections or spreading a virus to others.
ILL MARK BRAINLEST PLEASE HELP (PUNNET SQUARE PRACTICE)
What’s the term to describe a mutant viral protein without a genetic code that can cause disease?
Answer:
'Prion' is a term first used to describe the mysterious infectious agent responsible for several neurodegenerative diseases found in mammals, including Creutzfeldt-Jakob disease (CJD) in humans.
Explanation:
The term to describe a mutant viral protein without a genetic code that can cause disease is a "prion." Prions are abnormal forms of proteins that can induce misfolding of normal proteins, so option a is correct option.
The misfolded prion protein can convert normal proteins of the same type into the abnormal misfolded form of protein, leading to a chain reaction and accumulation of misfolded proteins. This can cause damage to brain tissue and result in the characteristic symptoms associated with prion diseases, which include changes in behavior, neurological dysfunction, and ultimately, severe neurological degeneration. so option a is correct option.
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complete question is below
What’s the term to describe a mutant viral protein without a genetic code that can cause disease?
A. prion
B. virion
What is the % of water inside the cell
Will osmosis occur
If so , which will water move (into or out of the cell )?
Will the cell swell or shrink ?
The cell is In what type of solution ? (Hypertonic , hypotonic ,isotonic ) help pls
The percentage of water inside the cell is 2.5 %. Water will move into the cell and it will swell. So it's a hypotonic solution.
What is osmosis?
Osmosis is the spontaneous diffusion or flow of water or other liquids over a semipermeable membrane, or one that prevents the passage of solutes, or dissolved compounds. The crucial biological mechanism was initially in-depth investigated in 1877 by German plant physiologist Wilhelm Pfeffer. Inaccurate investigations of leaky membranes, such as animal bladders, and the movement of water and other chemicals through them were previously conducted by other researchers.
A solution will tend to become more diluted by absorbing solvent through a membrane separating it from the pure solvent if the membrane is permeable to the solvent but not to the solute. The osmotic pressure, also known as the pressure exerted on the solution, can be raised to a certain level to halt this process. Jacobus Henricus van 't, Hoff, a Dutch-born chemist, demonstrated in 1886 that Henry's rule is obeyed if the solute is sufficiently diluted that its absolute vapor pressure is above the solution.
Therefore, the percentage of water inside the cell is 2.5 %. Water will move into the cell and it will swell. So it's a hypotonic solution.
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Writing your own quiz from the information you learned in class and during your reading will help improve your study skills.
A.
True
B.
False
Answer:
A. true
Explanation:
Writing your own quiz on the information you studied will force you to go over the information and find all the important details
When mRNAs are being translated simultaneously by multiple ribosomes, the structure is known as a(n) g
Answer:
The structure is known as polysome
Give an example of a buffer in the body.
Answer: Several substances serve as buffers in the body, including cell and plasma proteins, hemoglobin, phosphates, bicarbonate ions, and carbonic acid.
Explanation:
Choose all the answers that apply.
Biomass includes _____.
animal waste
paper trash
animals
sunlight
plants
Names of living things
Answer:
Animals such as rhinos, dolphins, and more.
Explanation:
Answer:
animals, plants, humans and much more.
Explanation:
A DNA molecule with a total of 1500 nucleotides has 300 cytosines. How many thymines does the DNA molecule have?
The DNA molecules will have 450 thymines if a DNA molecule has a total of 1500nucleotides
A DNA molecule also known as deoxyribonucleic acid is made up of a double helix.
The DNA molecule with a total of 1500 nucleotides will contain 750 cytosine and Thymines and 750 guanines and adenine.
Hence we can have the expression:
C + T = 750
If there are 300 cytosines, hence;
300 + T = 750
T = 750 - 300
T = 450
This shows that the DNA molecules will have 450 thymines
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How the animals survive in tropical rainforest
Answer:
The animals use the tall trees for shelter, hiding places from their predators, and source of food. Because there are many animals competing for food, many animals have adapted by learning to eat a particular food eaten by no there animal
Explanation:
Put in own words and add more reasons and details hope it helped a lil
Identify the features of organisms from their different kingdoms ?
Answer:
All organisms in the Animal kingdom are Heterotrophs meaning, unlike plants which produce their own food, animals feed upon other organisms.
Explanation:
brian period occurred approximately 500 million years ago, and we are currently in the Quaternary period.
PERIOD
ANIMALS
PLANTS
Humans
Flowering
plants
Mammals
Birds
Ginkos
Quatemary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Pennsylvanian
Mississippian
Devonian
Silurian
Ordovician
Cambrian
Reptiles
Pines
Amphibians
Club mosses
Horsetail rushes
Fems
Animals with shells
Fishes
Based on the chart, describe the trends that can be observed in animal and plant fossils as they evolved over time.
Use evidence from the chart to support your conclusions.
B IV x x Font Sizes
А 三星 三 三
А
Describe DNA replication. Include all relevant aspects. When does this process occur? and why
A window display attracts passersby
True
False
Answer:
it is dosnt attracts passerby False
Which organ system is used for smelling
The sentences below contain one advantage statement and one disadvantage statement. To form a strong basis for debate, both statements must be true and both statements must make valid points.
Which statements best debate the advantages and disadvantages of using renewable energy sources, such as hydropower, solar energy, or geothermal resources?
Choose the correct answer.
Solar energy is extremely inexpensive to harvest. Solar energy is available everywhere on the planet.
The use of geothermal energy produces enormous amounts of pollution. The technology required to collect thermal energy is relatively inexpensive.
Geothermal energy is more renewable than solar energy. Hydropower can change flowing water from a renewable energy resource to a nonrenewable resource.
The use of hydropower requires the construction of dams that change the ecology of the river. Hydropower will be available as long as the river continues to flow.
Answer:
maybe solar energy
Explanation:
Why don't the hydrolytic enzymes Within lysosomes destroy each other?
Answer:
A lysosome is a membrane-bound cell organelle that contains digestive enzymes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria. If the cell is damaged beyond repair, lysosomes can help it to self-destruct in a process called programmed cell death, or apoptosis.
Explanation:
If two animals mated, say one had a curly tail and the other had a straight one. All the offspring's carried the gene of a curly tail. Why would that happen?
Answer:
The curly tail gene is dominant
What is the difference between obtaining molecules from food and air in a water bear from obtaining the same by a human body? (need 3 sentences) who knows, please help
Answer:
Tardigrades need oxygen like every other animal on Earth, but it can only 'breathe' oxygen from the water around it. Take it out of its aquatic environment and it can no longer breathe or do much of anything else except dry itself out.Which statement describes a process associated with meiosis?
Haploid cells join to form an organism that has half the number of chromosomes as the parent.
Haploid cells join to form an organism that has a complete set of chromosomes.
Haploid cells join to form an organism that has double the number of chromosomes as the parent.
Haploid cells join to form an organism that is genetically identical to the parent.
Answer:
B: Haploid cells join to form an organism that has a complete set of chromosomes.
Explanation:
HOPE THIS HELPS!!!!
Haploid cells join to form an organism that has a complete set of chromosomes describes a process associated with meiosis.
What do you mean by meiosis?Meiosis occurs in the primordial germ cells, which are distinct from the body's normal somatic cells and are designed for sexual reproduction. A germ cell goes through interphase, during which the entire cell, including the genetic material.
In sexually reproducing organisms, meiosis is a unique type of cell division that results in the production of gametes, such as sperm or egg cells. It involves two division rounds that produce four cells with just one copy of each chromosome.
Gametes, or sex cells, are produced during meiosis. Each of the four haploid daughter cells produced during meiosis has half the number of chromosomes as the parent cell.
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Suggest an explanation for the evolution of the pigeon-like ancestor into the flightless dodo.
Answer:
It's ancestors were pigeon-like birds which flew to the island millions of years ago. There were no predators on the island. Gradually, the birds became much heavier, lost their ability to fly and evolved into the dodo.
Explanation:
1. What makes up a phenotype of a plant or animal?
2. What are the genes that produce a phenotype?
3. The study of heredity is called _________________.
4. Who is considered the “father” of genetics?
5. Genes had two copies each. These copies are called ___________.
6. What are Mendel’s 4 findings from his study?
7. The nucleus contains genetic material, or ______. (This is short for _______________________.)
8. How many PAIRS of chromosomes do humans have?
9. True/False: All species have the same number of chromosomes.
10. What are the four kinds of bases that join together in DNA strands?
11. What three people were instrumental in discovering DNA?
12. ___________ _________ make up proteins, and ____________ provide the code to make those proteins.
13. The human genome contains ________________ genes.
14. Describe sequencing.
15. Human DNA is 96% identical to the DNA of ___________________.
16. What are mutations and what do they cause?
17. Adaptations are caused by a ________________ in the DNA of an organism.
18. Describe one way studying genetics of organisms can be beneficial?
19. What are some ethical concerns we have about genetic studies?
Answer:
KANDEL FAMILY
Explanation:
1=Denish Kandel
2=Sujata Kandel
3=Bishnu Kandel
4=Luna Kandel
What are some possible applications of therapeutic cloning?
Answer:
Hey mate....
Explanation:
This is ur answer....
Other applications of therapeutic cloning include the diagnosis of epigenetically triggered cancer and the tailoring of a treatment using SCNT, the creation of animal models of human diseases, and could eventually lead to tissue engineering of organs de novo.
Hope it helps!
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what is the antilog calculation for a measurement of 3.85cm
Answer:
bbbbbbbbb
Explanation:
hggggggg
Matter begins to move through this food chain when the?
Answer: When the energy of the sun is captured by plants.