Answer:
The most basic function of the cell cycle is to duplicate accurately the vast amount of DNA in the chromosomes and then segregate the copies precisely into two genetically identical daughter cells.
Explanation:
The purpose of cell cycle, To regulate the cell division according to need of a cell. It helps in dividing and growing the new cells in multicellular organisms.
What are the different stages of cell cycle ?A series of events occurs in a cell leads to the duplication of DNA and division of cytoplasm to produce two daughter cells called as cell cycle.
It consist up two phases interphase and M phase.
Interphase is the cell's resting phase, where cell prepare its self ready for cell division, it consist of 3 sub phases G1, S, G2.
In gap 1, metabolically active cell continues to grow without DNA replication.
In S phase, DNA replication occur and the centriole divides into two centriole.
G2 phase, the RNA, proteins, other macromolecules needed for other cell organelle multiplication.
M or mitotic phase cell under go mitotic division to give rise to equal chromosome number containing progeny.
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DNA regions that are transcriptionally silenced by hypercondensation have often undergone a modification of their _______ residues termed _______.
a. hyperoxidation.
b. methylation.
c. dephosphorylation.
d. phosphorylation.
e. integration.
Answer:
b. methylation.
Explanation:
Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.
Genome editing can be defined as a high-tech process which avail scientists the opportunity or ability to remove (delete), replace and insert Deoxyribonucleic Acid (DNA) sequence in a living organism such as bacterias, animals, plants etc in order to correct a genetic disorder and to improve on their physical and chemical conditions.
Transcription can be defined as a process which typically involves re-writing the informations contained within a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) by enzyme RNA polymerase.
Hence, DNA regions that are transcriptionally silenced by hypercondensation have often undergone a modification of their cytosine residues termed methylation.
For example, CpG island methylation transcriptionally silences about 650 to 800 genes in patients suffering from colorectal cancer.
The study of cells is cell biology.
The correct answer is B.
Science can be defined as a branch of intellectual and practical study which systematically observes a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants, and humans) in the natural world through experiments.
Genome editing can be defined as a high-tech process that avail scientists the opportunity or ability to remove (delete), replace, and insert Deoxyribonucleic Acid (DNA) sequence in a living organism such as bacterias, animals, plants, etc in order to correct a genetic disorder and to improve on their physical and chemical conditions. Transcription can be defined as a process that typically involves re-writing the information contained within a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) by enzyme RNA polymerase. Hence,
DNA regions that are transcriptionally silenced by hyper condensation have often undergone a modification of their cytosine residues termed methylation.
For example, CpG island methylation transcriptionally silences about 650 to 800 genes in patients suffering from colorectal cancer.Hence, the correct answer is B that is methylation.
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Please help it’s urgent!!
A red blood cell is in an artery of the left leg of a human being. It will pass through how many capillary beds before it reaches the right atrium of the hert?
Answer:
two (2)
Explanation:
Remember, the capillaries in simple words refer to a tiny vessel that aids in the removal of waste products, circulation of red blood cells, oxygen, and other vital nutrients to the entire body.
After observing the schematic representation of the human body's circulatory system, we can make the conclusion that the red blood cells will pass through two (2) capillary beds before it reaches the right atrium of the heart.
If a gamete contains 24 chromosomes, how many chromosomes would the somatic cells contain?
Answer:
46 chromosomes are present in somatic cell
Which of the following describes the consequences of overgrazing? (3 points)
I. Low precipitation
II. Desertification
III. Loss of arable land
IV. Soil erosion
O II, III, and IV
O I, II, and IV
I and II
O I and IV
Answer:
II. Desertifiction
The things that describes consequences of overgrazing are low precipitation, loss of land, and soil erosion. The correct option is A.
What is overgrazing?Overgrazing occurs when plants are subjected to intensive grazing for an extended period of time or without adequate recovery time.
It is caused by livestock in poorly managed agricultural applications, as well as game reserves and nature reserves.
Overgrazing can significantly decrease ground cover, allowing wind and rain to erode and compact the land.
This reduces the ability of plants to grow and water to penetrate, causing soil microbes to suffer and causing serious erosion of the land.
It is caused by livestock in poorly managed agricultural applications, as well as game reserves and nature reserves.
Thus, the correct option is A.
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List 5 cause and effect signal words
Therefore
Hence
Because of
Since
Causal
(Hope this helps :))
An element's mass number represents the number of
bor of electrons in an atom is typically equal to
Answer:
the mass number is protons and nuetrons added together in the atomic nucleus.
Explanation:
What is a "disturbance" in the field of ecology?
A living factor that affects organisms.
A non-living factor that affects organisms.
An event that changes a community.
An event that makes a species extinct.
Ecological disturbance, an event or force, of nonbiological or biological origin, that brings about mortality to organisms and changes in their spatial patterning in the ecosystems they inhabit.
hope this helps
Blended inheritance assumed traits:
O Were passed on intact
O Were diluted over time
O Were the result of learned skills
O Were incompatible with evolution
Answer:
O Were diluted over time
Explanation:
Blending inheritance is an outdated theory about inheritance that is no longer accepted.
The theory is that offspring inherit any characteristics as the average of the parents. For example, if a father had black hair and a mother had blonde hair, the child would have brown hair.
We now know, thanks to Mendel's work on inheritance, that the inheritance of characteristics are not so simple!
what is bioluminescence
Answer:
Bioluminescence is the production and emission of light by a living organism. It is a form of chemiluminescence. Bioluminescence occurs widely in marine vertebrates and invertebrates, as well as in some fungi, microorganisms including some bioluminescent bacteria, and terrestrial arthropods such as fireflies.
Explanation:
What are two conditions you need for air mass formation?
Hills/Moisture
Flat Terrain/Same Moisture
Hills/Rivers
Mountains/Lakes
Answer:
Flat terrain/same moisture
Explanation:
Ive done a test that had this question and got it right.
The two conditions you need for air mass formation are flat terrain and same moisture. The correct option is B.
What is air mass formation?It is Known as source regions, air masses form over large surfaces with uniform temperatures and humidity.
Low wind speeds allow air to remain stationary for long enough to absorb the characteristics of the source region, such as heat or cold.
When the atmosphere comes into contact with a large, relatively uniform land or sea surface for a long enough period of time, the temperature and moisture properties of that surface are acquired. The major air masses on Earth originate in polar or subtropical latitudes.
Air masses form over large surfaces with uniform temperatures and humidity, which are referred to as source regions, as well as flat terrain and the same moisture.
Thus, the correct option is B.
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I need help with this!
Answer:
i can not explain
Explanation:
Can u help me please
17.
decreases.
it substantially increases then decreases.
18.
to the same organisms because oak leaves come from oak trees.
19.
Pyramid B
Pyramid A does not accurately represent the supply of food for the caterpillars.
The fossil record is large, but it is 77lo still....
WHATS THE LAST PART??
Will the fossil record ever be complete?
Today, through over a century of study of both the Earth's surface and the completeness of the fossil record, paleontologists have been able to determine that while the record will never be complete and always has preservation biases, we often have more than enough evidence to draw strong evolutionary conclusions about ...
How does Kim’s red blood cell appear different from the patient’s? Why is this the case?
Which statement about DNA replication is true?
A. Prokaryotes only have one origin of replication to initiate replication.
B. Prokaryotes can only replicate their single circular chromosome at a time.
C. Eukaryotes can only replicate one segment of a chromosome that unwinds at multiple locations.
D. Eukaryotes only have one circular chromosome that unwinds at multiple locations.
Answer:
A.
Explanation:
not really much of an explanation but I got this question right :)
Answer:
d
Explanation:
This chemical equation represents a chemical reaction.
HCl + NaOH - NaCl + H20
Which two chemicals are products in the chemical reaction?
A. NaOH
B. H20
C. NaCl
D. HCI
Answer:
the answer is NaCl and H20
This chemical equation represents a chemical reaction. HCl + NaOH - NaCl + H20, in the reaction NaCl and H₂0 are products of the chemical reaction.
What are the products in the chemical reaction?HCl + NaOH - NaCl + H₂0Here, Sodium Hydroxide, and Hydrochloric Acid combine as an acid and a base in a neutralization process to yield Sodium Chloride (common salt) and Water as by-products.
Reactants are the substance(s) in a chemical equation to the left of the arrow. A component that is present at the outset of a chemical reaction is known as a reactant. Products are the substance(s) to the right of the arrow.
Therefore, Sodium Hydroxide and Hydrochloric Acid combine as an acid and a base in a neutralization process to yield Sodium Chloride (common salt) and Water as by-products.
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Compare and contrast a cell and a tissue.
Answer:
Cells are the smallest, structural and functional unit of an organism, which is characteristically microscopic. Tissues are the distinct types of material consisting of specialized cells and their products. Found in both unicellular and multicellular organisms. Found only in multicellular organisms
Answer:
Cells are the smallest, structural and functional unit of an organism, which is characteristically microscopic.But Tissues are the distinct types of material consisting of specialized cells and their products.
Explanation:
Cells are found in both unicellular and multicellular organisms.But Tissues are Found only in multicellular organisms.
what do we sometimes call glycogen?
a. fat starch
b. animal starch
c weak starch
Answer:
a
Explanation:
....... is the wall which separates right and left side of the heart .
Answer:
septum
Explanation:
Answer:
The septum is the wall which separates the right and left side of the heart.
explain any two specific adaptation that allow animal to survive in Mountain habitat
Answer:
Among others, two adaptations might be
Avoiding corporal heat lossIncreasing oxygen absorptionExplanation:
Up in the mountains, there is low oxygen, food is scarce, and adverse meteorological conditions. Animals and plants need to develop different strategies to survive. These adaptations involve not only physical and physiological changes but also behavioral changes. To mention a few adaptations, we can name:
Avoiding heat loss. Temperature tends to be very low at highs, so, to avoid heat loss, animals develop shorter legs, tails, and ears. By doing this they reduce the area or surface of heat loss and also avoid getting frozen. In mammals, the coat is also very important. A thick coat helps them maintain a constant body temperature and keep warm. Some amphibians might also develop a thicker skin as they can not regulate their temperature, and it also helps them not to dehydrate. Camouflage: Coat is also helpful in camouflaging. Mammals´ hair color depends on their environment. Some animals, such as hares, can also change their fur color depending on the season. During snow seasons they turn white, and during the warmer season, they turn yellow or brown. Size and metabolism: Small mammals lose heat very fast, so they need to keep active and feeding most of the time. They have an elevated metabolism to keep warm. On the contrary, big animals, such as bears, need to hibernate to reduce their metabolism and get to survive, otherwise, they would need many reserves to cover their energetic requirements. Oxygen absorption: Some animals have adapted to the lack of oxygen by increasing their heart and lungs capacity as well as their capability to absorbing more oxygen from the blood.Put the following mitosis and cytokinesis images in order.
The order of mitosis and cytokinesis given in images are 3, 2, 1, 4, and 5.
What do you mean by Cytokinesis?Cytokinesis may be defined as the process of cell division by which one cell physically divides into two daughter cells.
The four stages of mitosis are known as prophase, metaphase, anaphase, and telophase. After the completion of mitosis, a cell undergoes to cytokinesis where a cell divides into two daughter cells.
Therefore, the order of mitosis and cytokinesis given in images are 3, 2, 1, 4, and 5.
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Select the answer choice with the increasing levels of organizations.
Answer:
The answer is S.
(HELP PLS I NEED IT NOW ILL GIVE BRAINLEST) !!
Suppose you were a food scientist working for Yummy Foods. You have obtained a
butter-like spread produced by Delicioso Foods, your competitor. You decide to
analyze it chemically to learn more about their secret formula. If the Delicioso
Foods butter-like spread is a fat, which of the following elements are unlikely to be
present in this food product?
Select ALL that apply.
A. Carbon
B. nitrogen
C. oxygen
D. hydrogen
E. sulfur
B and E are likely not to be found in butter (fat).
Carbon, Hydrogen, and Oxygen are the usual elements of fat. I have added a photo below that shows the elements in some various fats, take a look.
Rudy is amazing in all of his school classes, except math. He struggles to understand basic arithmetic concepts, confuses mathematical symbols like “+” and “=”, and gets very frustrated and upset at the thought of doing math homework. Rudy has a normal level of cognitive functioning in other areas, and reads and writes with ease. Rudy’s parents may want to have him evaluated to see if he suffers from ________.
Answer:
Dyscalculia.
Explanation:
Dyscalculia is a condition (or disorder) that implies having difficulty in learning mathematics/basic arithmetic knowledge. At school, these difficulties are reflected in repeated failures in the area of mathematics, while in the rest of the subjects the child can perform well or his/her performance is within normal values. At an academic level, the child fails in mathematics and runs away from subjects related to this area. Frustration with the demands of the stage appears, associates his/her disability with being clumsy, suffers, becomes demotivated and his/her self-esteem weakens.
What is the secondary level of structure in proteins?
A herd of elk is an example of a(n)_____.
organism
ecosystem
population
community
Answer:
population
Explanation:
__________ describes the observable traits in the physical appearance of an organism.
The seed plants became dominant during the late ___ when the climate became ___.
The seed plants became dominant during the late Paleozoic era when the climate became drier and more arid.
The dominance of seed plants during the late Paleozoic era was driven by a combination of their unique reproductive strategies, water-conserving adaptations, and the changing climate that favored their survival and proliferation.
During the late Paleozoic era, which lasted from approximately 298 million years ago to 252 million years ago, seed plants, including gymnosperms and later angiosperms, became the dominant plant group on Earth.
This era is also known as the "Age of Seed Plants" due to the significant diversification and success of seed-bearing plants.
One of the main factors that contributed to the rise of seed plants during this time was the changing climate. The late Paleozoic era saw a shift towards drier and more arid conditions, with the decline of the swampy and humid environments that characterized earlier periods.
Seed plants have several adaptations that allowed them to successfully colonize and dominate these drier environments. One key adaptation is the ability to produce seeds, which are reproductive structures containing embryos and stored nutrients.
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Newton's second law of motion describes acceleration as force divided by __________.
Answer:
Explanation:
the objects mass
Answer:
massNewton's second law of motion describes acceleration as force divided by __________.