Answer:
virus are obligate parasites. Viruses do not, however, carry out metabolic processes. Most notably, viruses differ from living organisms in that they cannot generate ATP.
Role of mitosis in plant growth and development
Answer:
The mitosis cell division helps in vegetative growth in plants. It also helps in healing of wounds
Which of the following effectively describes the situation of someone with an inherited predisposition to cancer such a familial adenomatous polyposis or BRCA-associated familial breast cancer?
a) Every cell of their body contains a gain-of-function allele of an oncogene
b) Most cells in their body contain multiple cancer-causing mutations
c) If they get malignant cancer, somatic mutations will not have been a factor
d) Their cancer will most likely arise in their germ cells, not their somatic cells
e) None of the answers effectively describes the situation
f) Every cell of their body contains a defective, loss-of-function allele of a tumor suppressor gene
Answer:
Every cell of their body contains defective , loss of function allele of a tumor suppressor gene
Explanation:
Tumor suppressor genes - They encode Proteins that inhibit cell proliferation . But due to Loss of functional alleles in Tumor suppressor genes it leads to the development of different cancers
Every cell of the body comprises of a defective and loss-of-function allele of a tumor suppressor gene.
The presence of defective and non-functioning tumor suppressor gene is responsible for the happening of cancer disease because the tumor suppressor gene slow down the process of cell division as well as repair mistakes occur in DNA molecule. When the tumor suppressor genes can't perform its function properly, it causes out of control growth of cell, which can lead to cancer disease so we can conclude that tumor suppressor gene is responsible for the cancer disease.
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Which statement is most likkely to applyto a cell that has DNA whitin its ytoplasm
Answer:
It performs all functions for the organisms
Describe the parts of the building blocks of lipid
Answer:
Glycerol and fatty acids are the basic building blocks of fats (lipids). Fats are the product of the esterification of the trivalent alcohol glycerol with fatty acids of different lengths (between 12 and 20 carbon atoms). Two important representatives of the lipids are triglyceride (90% of fats) and cholesterol.
HELP ASAP PLEASE I NEED HELP FAST
What are some items that could be hot enough to bring fuel to
an autoignition temperature
Answer:
Still higher hydrocarbons are liquid, such gas oil or kerosene. For gas oil or kerosene at ~500 °C/20 bar autoignition time may come down to 1–10 ms (see Fig.
...
Autoignition time and temperature.
A new mammal has been discovered in the thickly-forested mountains of Papua New Guinea. The squirrel-like animal lives in the canopy of the forest and has a diet rich in leaves. On occasion, however, the animal drops to the ground to quickly fill its cheeks with its own fecal droppings, for ingestion once it is safely back in the trees. The GI tract of this animal would most likely include ________. a simple stomach and a large cecum a simple stomach, a short small intestine and colon, and a small cecum a four-chambered stomach and long intestines a long small intestine with abundant villi and an appendix at the beginning of the large intestine a short intestine and no cecum
Answer:
a simple stomach and a large cecum
Explanation:
Some small animals whose diet is prominent in vegetable matter, have an elongated cecum.
This segment of the digestive tract might be considered the first portion of the large intestine. It receives undigested material, and through the action of bacterial flora, is able to ferment this material and mix its contents with mucous substances to facilitate absorption. Through the walls, the organ can absorb fluids, salts, and nutrients.
The cecum size varies according to the animals. In small organisms, such as the new squirrel-like herbivore animal from the example, the cecum is enlarged. An elongated surface is useful for better digestion and absorption.
Gymnosperm is an advanced group than pteridophytes. Justify this statement with any five points.
Five major reasons why gymnosperms are more advanced than pteridophytes are highlighted below:
WHAT ARE GYMNOSPERMS AND PTERIDOPHYTES?
Gymnosperms are a group of higher plants that produce naked seeds i.e. seeds not cased by a fruit. Pteridophytes are a group of lower plants that have vascular bundles.
WHY ARE GYMNOSPERMS ADVANCED THAN PTERIDOPHYTES?
Gymnosperms bear seeds while pteridophytes bear spores (seedless)Gymnosperms do not require water for fertilization to occur while pteridophytes require water for their fertilizationGymnosperms have a well developed root system while pteridophytes do not have a well developed root system (they use rhizoids)Gymnosperms exhibit secondary growth while pteridophytes do notGymnosperms undergo pollination while pteridophytes do not.Learn more at: https://brainly.com/question/10517712
mode of transmission of scabies
Answer:
Scabies usually is spread by direct, prolonged, skin-to-skin contact with a person who has scabies. Contact generally must be prolonged; a quick handshake or hug usually will not spread scabies. Scabies is spread easily to sexual partners and household members.
Define the five systems. Be sure to include enough information to distinguish each system from the others
Answer:
By definition, a body system is primarily comprised of different organs and tissues that work one another to achieve a common body process. These body systems would include:
Explanation:
Circulatory system - concerns with the circulation of blood
Digestive system - breaking down of food particles
Skeletal system - composed of bone structures serving as our body's framework
Nervous system - composed of nerve cells that responds to different stimuli
Respiratory system - concerns of utilizing the entry of oxygen and the exhalation of carbon dioxide.
What is the effect of these currents on Earth's temperatures?
Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth's surface.
Please help anyone ?????!!!
What is conjugation?
A. when two haploid cells fuse and reproduce
B. when two organisms exchange information and reproduce
asexually through mitosis
C. when a cell divides and produces two identical cells
Answer:
when two organisms exchange information and reproduce
Human blood type is an example of which two types of genetics?
A. Multiple alleles and Polygenic inheritance
B. Codominance and Incomplete dominance
C. Incomplete dominance and Polygenic inheritance
D. Codominance and Multiple alleles
The Human blood type is determined by the presence or absence of specific antigens on the surface of red blood cells polygenic inheritance involves the contribution of multiple genes to a single trait, which is not the case for human blood type determination. D
The genetics of blood types involves both codominance and multiple alleles.
Codominance refers to a situation where both alleles of a gene are expressed simultaneously and equally in the phenotype.
In the case of blood type, there are three alleles involved: A, B, and O.
Alleles A and B are codominant, meaning that if an individual inherits both A and B alleles, both antigens will be present on their red blood cells. This results in blood type AB.
Multiple alleles refer to the existence of more than two alternative forms of a gene in a population.
In the case of blood type, individuals can have blood type A (AA or AO genotype), blood type B (BB or BO genotype), blood type AB (AB genotype), or blood type O (OO genotype).
The A and B alleles are dominant over the O allele, which is recessive.
Therefore, the combination of codominance and multiple alleles explains the inheritance patterns of human blood types.
This system allows for the expression of both A and B antigens (codominance) while accommodating the presence of multiple alleles (A, B, and O) in the population.
It is important to note that blood type inheritance is not an example of incomplete dominance or polygenic inheritance.
Incomplete dominance refers to a situation where neither allele is completely dominant, resulting in an intermediate phenotype.
Therefore, human blood type is an example of both codominance (expressing multiple alleles simultaneously) and multiple alleles (more than two alternative forms of a gene exist within a population).
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Please I really need your help.
Answer:
yes I can help you your question??
According to cell theory, all new cells...
A. must share DNA with existing cells.
B. must eat.
C. come from other cells.
Answer:
с
Explanation:
all new cells come from other cells
What is the independent variable
What is the structure of the middle ear?
Answer:
The middle ear is a narrow air-filled cavity in the temporal bone. It is spanned by a chain of three tiny bones—the malleus (hammer), incus (anvil), and stapes (stirrup), collectively called the auditory ossicles.
Explanation:
Hope this helps!;)
Based on your own investigation, what challenges do you think scientists face when classifying new organisms?
The main challenge that scientists face in classifying new organisms is that some organisms may show properties that are intermediate between the properties of known classes of organisms.
What is taxonomy?Taxonomy is the hierarchical system whereby scientists classify organisms based on the characteristics of the organism. New organisms are studied and classified accordingly.
However, new organism may show properties that are intermediate between the properties of known classes of organisms thereby posing a problem for the classification of such organisms.
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what are in protista which help them in locomotion ?
They work coordinately by beating movements and helps the protists to move. ... Therefore, the important locomotory organelles in protists are flagella, cilia and pseudopodia. Flagella is a single, slender long structure while cilia are numerous in number. Cilia helped in locomotion by the synchronized beating movements.
The essence of meiosis is that a. specialized cell division reduces the chromosome number by half b. gametes are formed that are diploid c. specialized cell division doubles the chromosome number d. gametes are formed that are haploid e. a and d are correct
Answer:
e. a and d are correct
Explanation:
Meiosis produces 4 daughter cells that are haploid. Haploid means they have half of the chromosomes of the parent cell.
The essence of meiosis is that specialized cell division reduces the chromosome number by half and gametes are formed that are haploid.
Therefore option e is the right answer.
What is meiosis?A single cell splits twice during the meiotic process, resulting in four cells with half the original genetic material. These cells are our sex cells—eggs in females and sperm in males—and they are produced by a specific form of germ cell division in sexually reproducing species. Two rounds of division are necessary, and the end product is four cells with just one copy of each chromosome. The goal is to produce gametes, or sperm and eggs, that contain half of the parent cells' genetic makeup. Meiosis is characterized by DNA replication, two rounds of cell division, and the production of four daughter cells, each of which has half as many chromosomes as the parent cell.To learn more about meiosis, refer
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What is the chain of custody?
A) the order of who gets custody of the crime scene
B) the paper trail of every person that has been in contact with the evidence throughout its seizure, collection, preservation, analysis and
disposition
C) the order of suspects
D) the people who have custody of children until the case is closed
If the inner membrane of mitochondria was not folded, how would it affect the organism?
Answer:
There wouldn't be enough surface area for the electron transport chain.
2x - 5 = 7
slove for x
2x-5=7
2x=7+5
2x=12
x=12/2
x=6
_______
I need help please ??????!!!
hi i haven't done physics for like 3 yrs but i'm pretty sure
the one on top is a rarefaction
number 2 a compression since it's all compressed together
and number 3 has to be wavelength since that's the measure of a single wave
Porque crees que las personas llegan a consumir sustancias psicoactivas
Answer:
La causa exacta del consumo de drogas se desconoce. Los genes de una persona, la acción de las drogas, la presión de compañeros, el sufrimiento emocional, la ansiedad, la depresión y el estrés ambiental pueden ser todos factores intervinientes.
Explanation:
Looking in the rain forest pictures, how would you begin to classify the pants in the scene?
Answer:
I'm kinda confused can you help me understand it better please
In this diagram of a long bone, which type of bone marking is circled? anatomical drawing of a long bone showing the internal structure, with the point where the blood vessels enter circled
Answer:
the answer is osteon
Explanation:
Which macromolecules are responsible for carrying the genetic material in a cell?
-Nucleic acids
-Lipids
-Proteins
-Carbohydrates
Answer:
[tex]\boxed {\boxed {\sf Nucleic \ acids}}[/tex]
Explanation:
Macromolecules are larger molecules made up of smaller building blocks known as monomers. There are 4 major macromolecules that are incredibly important for maintaining life. We are looking for the macromolecule that carries genetic material.
Nucleic Acids
These include DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). They are made up of nucleotides and store the genetic information in a cell.This seems to be the correct answer, but let's check the other answer choices to ensure this is correct.Lipids
These include fats, oils, steroids, and phospholipids. They form cell membranes and hormones, and function as stored energy.Proteins
These are made of amino acids. They can act as structural components, enzymes, hormones, and more.Carbohydrates
There are many different kinds: monosaccharides, disaccharides, and polysaccharides. They are used as a form of quick energy.Nucleic Acids are responsible for carrying the genetic material in a cell.
Answer:
Nucleic Acids.
Explanation:
Penn Foster
6. Which of the following does not allow observation of living organisms?
a) Bright field microscopy
b. Phase contrast microscopy
c) Fluorescent microscopy
d. Dark Field microscopy ...
