Answer:
organized nucleus
Explanation:
when a tautomeric shift occurs, what is true about the resulting mutation?
When a tautomeric shift occurs, then the resulting mutation ALWAYS changes a purine to a purine or a pyrimidine to a pyrimidine. A tautomeric shift may lead to a point mutation.
A mutation is any alteration in the nucleotide (DNA) sequence of the genome of an individual.
A tautomeric shift can be defined as a temporary change in the nucleotide base structure.
A transition mutation is a point mutation of one purine or pyrimidine base pair to the other purine/pyrimidine that occurs when one nucleotide base undergoes a tautomeric shift during DNA replication.
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2. A sugar, a phosphate group, and a nitrogen base form the building blocks of which macromolecule?
a) Carbohydrates
b) Lipids
c) Nucleic Acids
d) Proteins
Answer:
c) Nucleic acids
Explanation:
Because DNA has those components
5. Viruses are not cells, nor are they made of cells. They also cannot
reproduce without another living cell. Which statement about viruses
is true?
A. viruses do not have a nucleus
C. virus are made up of tissues
B. viruses are multicellular
D. viruses are made up of organs
Answer:
B
Explanation:
... I think :] it could also be D
can somebody help me with this worksheet please!?
A test cross performed between the individual with unkown genotype and the h0m0zyg0us recessive individual. 9) hh. 10) Hh or HH. 11) HH x hh. 12) 100% Hh. 13) Hh x hh. 14) 50%Hh and 50% hh. 15) -16) in the text.
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Available data:Single diallelic gene codes for hair in Guinea pigsAllele H is dominant and codes for having hairAllele h is recessive and codes for not having hair
For this gene we will assume complete dominance, meaning that the dominant alele completely hides the expression of the recessive allele.
According to this information, we can say that
Genotype Phenotype
HH Hairy pig
Hh Hairy pig
hh Hairless pig
9) Geneviene does not have hair ⇒ Its genotype is hh
10) Fred has hair ⇒ Its genotype is HH or Hh
Possible crosses
11 and 12)
Cross1: If Fred was genotype HH and bred with Genevieve
Parentals) HH x hh
Gametes) H H h h
Punnett square) H H
h Hh Hh
h Hh Hh
F1) 100% of the progeny is expected to have hair and be heter0zyg0us, Hh.
13 and 14)
Cross2: If Fred was genotype Hh and bred with Genevieve
Parentals) Hh x hh
Gametes) H hh h h
Punnett square) H h
h Hh hh
h Hh hh
F1) 50% of the progeny is expected to have hair and be heter0zyg0us, Hh.
50% of the progeny is expected to be hairless and be h0m0zyg0us recessive, hh.
15)
• If the individual with the unknown genotype (Fred) is heter0zyg0us, the phenotypic rate of the descendants is 50% heter0zyg0us -Hh- and 50% h0m0zyg0us recessive -hh-.
• But if the individual with the unknown genotype is h0m0zyg0us dominant, the phenotypic rate of the descendants is 100% heter0zyg0us for the trait, Hh.
16)
The weakness is that even if Fred is heter0zyg0us for the trait, when making the cross it might occur that all individuals in the progeny are born h0m0zyg0us recessive, and there is a risk of missinterpreting the results.
So in that situation, many crosses must be done between fred and genevieve to se sure about Freds genotype.
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Cell Type
Root hair cell from a plant
Water
25. Complete the chart by describing the function and structure in each cell.
Function
Structural adaptation(s) that enable
the cell to carry out its function.
Un
Soil particles
Answer:
[tex][tex]\purple{\rule{45pt}{7pt}}\purple{\rule{45pt}{999999pt}}[tex][/tex]
Because they have a wide surface area to speed up absorption, root hair cells are designed to absorb water and mineral ions.
What is the role of root hair cells in plants?Plants are anchored by root hairs that emerge from the surface of the soil and take up water and minerals.
Vascular tissue in the heart of the root transports food produced in the leaves to the root, while transporting water and minerals away from it.
Its main purposes include anchoring the plant, absorbing water and dissolved minerals and transferring them to the stem, as well as storing reserve food.
Water and nutrients are mostly taken up by root hairs from the rhizosphere.
Therefore, root hair cell have large surface area that enable the cell to carry out its function.
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Black eyes (B) are dominant to red eyes (b) in mice. Use a Punnett square to cross two heterozygous parents. What are the possible genotypes?
A. bb
B. BB and Bb
C. BB, Bb, and bb
D. Bb and bb
Please answer ! Best answers will be marked as brainliest and will be given thanks and 5 stars , Any unnecessary answer , will be deleted and will hack your points.
Answer:
A. Northern tropic, equator, Southern tropic (I think Im not double sure)
B. Because the sun's rays hit the earth's surface at a higher angle at the equator
C. If earth did not tilt and orbited in an upright position around the sun, there would be minor variations in temperatures and precipitation throughout each year as Earth moves slightly closer and farther away from the sun
D. It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and it has the right chemical ingredients for life, including water and carbon.
Explanation: hope it helps love :)
Which reactanat makes cellular respiration more efficient than fermentation when making ATP?
a
Oxygen
b
Glucose
c
Water
d
Carbon Dioxide
Answer: glucose I think?
Explanation: I’m not sure but it should be more efficient.
Please help!! Multiple choice.
Answer:
Okazki fragments are pieces that are replicated on the discontinuous strand.
During cellular respiration, cells convert oxygen and glucose into carbon dioxide, water, and energy. How is this process related to that of photosynthesis?
A. The products of photosynthesis are the reactants of cellular respiration.
B. In photosynthesis, cells use ATP to convert insulin into glucose and carbon dioxide
C. In photosynthesis, oxygen is inhaled, and carbon dioxide and water are exhaled.
D. Both photosynthesis and cellular respiration occur in a cell's mitochondria.
A. the products of photosynthesis are the reactants of cellular respiration
what does it mean for a bacteria or protist to be photosynthetic?
Answer:
Because we know that photosynthesis is a process that plants use, we can define photosynthetic protists as 'plant-like' protists that get their nutrients by converting sunlight into energy using photosynthesis.
Explanation:
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Which of the following describes a process of succession after a forest fire?
A. Small plants and trees grow back at the same time.
B. Two types of plants grow side by side.
C. Small plants grow but are eventually replaced by larger plants.
D. Animals and plants both grow in the area.
SUBMIT
Answer:
D if I'm D correct, or A maybe C, mostly D.
Answer:
C. Small plants grow but are eventually replaced by larger plants
Explanation:
these diverticula are lined with transitional cell epithelium.
Answer:
calyceal diverticula
Explanation:
there is no explanation
19. An ectotherm is also called a a. thermoregulator. b. thermoconformer. c. homeotherm. d. poikilotherm.
Answer:
An ectotherm can also be called a Poikilotherm.
:)
Which of the following is an example of an adaption?
A: Wolves work together to catch prey
B: A dog walks without pulling on its leash
C: Ducks swim near the shore by a picnic area, where food is always available
D: Birds living near a highway learn not to fly away every time a car passes
Answer:
D
They are adapting to their environment to increase chances of survival.
Compared to other routes of administration, ________ is the most complicated way for a drug to enter the bloodstream.
Answer: the answer is oral consumption
Compared to other routes of administration, oral consumption is the most complicated way for a drug to enter the bloodstream.
How many ways can drugs enter the bloodstream?Substances can enter the body in different ways. Drugs can be smoked, inhaled, injected, swallowed (tablets, capsules, liquids), or applied transdermally (applied to the skin). Most of the drugs are taken orally and broken down in the gastrointestinal tract. Once the drug arrives, it is broken down by stomach acid before passing through the liver and into the bloodstream. Medicines can be taken in a variety of ways, including swallowing, inhaling, absorbing through the skin, and injecting. Each method has advantages and disadvantages, and not all methods can be used with all drugs. After the tablet is swallowed, it is usually absorbed through the stomach wall into the blood. These take effect within minutes, but usually take 1-2 hours to reach peak blood levels.To learn more about medication, refer
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a main difference between a scientific theory and a hypothesis is that?
Answer:
scientific theory needs proof and strong proof like its needs to solve some other problems related to this..
hypothesis is just like imaginary theory which may be sure but not clear like parell universe
help pls anyone i need help apreciated
Answer:
wetlands
Explanation:
because wetlands
Clusters of ganglionic sympathetic neurons that innervate organs in the abdominopelvic region are called ________ ganglia.
Explanation: Clusters of ganglionic sympathetic neurons that innervate organs in the abdominopelvic region are called Intramural ganglia!!! Hope This Helps! Happy Early Christmas! :D
how is the magnetic field of a magnet represented ?
first to answer gets brainliest!
Answer:
Continuous lines of force/magnetic flux
Homeostasis is necessary for a cell to survive. What is the definition of homeostasis
Answer:
Homeostasis is the process of maintaining a constant internal environment suitable sustaining life.
Homeostasis continues to maintain ideal environment for enzyme action and all cell functions throughout the body.
Why homeostasis is necessary?It is the preservation of a constant internal environment in the face of changing internal and external conditions. These include blood glucose concentration control in the human body.
A series of control mechanisms at the organ, tissue, or cellular level maintain homeostasis.
Substrate supply, activation or inhibition of individual enzymes and receptors, enzyme synthesis and degradation, and compartmentalization are examples of control mechanisms.
The liver, pancreas, kidneys, and brain (hypothalamus, autonomic nervous system, and endocrine system) all contribute to homeostasis.
The liver is in charge of metabolizing toxic substances and maintaining carbohydrate metabolism with pancreatic signaling.
Thus, homeostasis is necessary for a cell to survive.
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Explain the "air-sea gas exchange" and what gases are involved.
Answer:
Air-sea exchange is a physio-chemical process and is important for the cycling of gases such as carbon dioxide, methane, nitrous oxide, dimethylsulfide and ammonia
What is the function of the organelles that are labeled F? plant cell
Answer:
endoplasmic reticulum ( ER)
Explanation:
edg im guessing
50 points and brainliest
Drag each tile to the correct box. Not all tiles will be used.
Mitosis is a type of cell division. Organize the images below to show the steps of mitosis.
Answer:
The lesson provided all the information, and I got a 100%
Explanation:
In response to a threat, we perspire, breathe more quickly, get goose bumps, and feel nauseated. These responses are:
Answer: sympathetic nervous system
Explanation: because it is the body's rapid involuntary response to dangerous or stressful situations.
Goosebumps are a symptom of a seizure illness termed temporal lobe epilepsy, a sympathetic nervous system disorder, or other brain disorders, albeit they are uncommon. They are also common with heroin or other drug withdrawal.
What cause goose bumps, and feel nauseated in body?The body's quick automatic reaction to hazardous or stressful circumstances is controlled by the sympathetic nervous system.A quick hormone rush raises the body's alertness and heart rate, which boosts the flow of blood to the muscles.
Therefore, In response to a threat, we perspire, breathe more quickly, get goose bumps, and feel nauseated. These responses are Sympathetic nervous system because it is the body's rapid involuntary response to dangerous or stressful situations.
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what is the solid obtained at the neck of a funnel in sublimation?
Answer:
Sublimation is conversion of solid of vapors on heating and vapors to solid on cooling. The solid which undergoes sublimation is called sublime, whereas the solid obtained by cooling vapors is called sublimate.
The enzyme that builds the complimentary strand during replication.
helicase
replicase
polymerase
synthase
Answer:
polymerase
Explanation:
It wraps itself around a polynucleotide strand and attaches new nucleotides to the exposed nitrogenous bases
What are Chromatids in biology
Answer:
A chromatid is one of two identical halves of a replicated chromosome. During cell division, the chromosomes first replicate so that each daughter cell receives a complete set of chromosomes.
Explanation:
I don’t know how to do this. Help me please
differentiate between middle and inner part of ear
Answer:
middle= This is the part through which sound travel inside the ear to the eardrum through the auditory canal . sound causes the eardrum nad it's tiny attached bones in the middle portion of the vibration and conducted to the nearby cochlea
inner part= the cochlea is the part of the inner ear . its main function is to transform sound into nerve impulses......
