explain about Meiosis and Other Factors Affecting Genetic Variability

Answer:

eukaryotic cells?

Explanation:

Answer:

Mitosis occurs in eukaryotic cells.

Explanation:

(Option C.) A patient with hereditary anemia is given a normal version of the gene.

Gene therapy is an experimental technique whereby a patient's own genetic material is modified in order to treat a medical condition. In this example, a patient with hereditary anemia is given a normal version of the gene in order to restore the proper functioning of the patient's cells and provide relief from their anemia symptoms.

Gene therapy can be used to treat a variety of genetic illnesses and diseases, from inherited forms of blindness to inherited forms of cancer. While gene therapy is still in its early stages, much progress has been made in the last few decades in understanding how to manipulate genetic material in order to treat medical conditions.

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An adaptation that the sea spider has for gathering food and conserving energy Gathering Food. Option A.

Many spider crabs have colors and patterns that match the algae and other organisms on the sea floor. Some have bright colors to ward off predators. They use a tubular proboscis to capture food or feed on microbes. Spider crabs reproduce by forming mating groups in which males collect and fertilize eggs from females.

The father then takes care of the eggs and offspring. Spider crabs are a widespread and phylogenetically important group of marine arthropods. As the spider grows, its skin becomes more sacred and can fuel its larger body by absorbing the abundant oxygen packed in cold water. It has also been found to be useful in obtaining.

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Answer: i think its D

Explanation:

i don't know

if i'm right but i tried

Answer:

1.)true

2.)true

3.)true

4.)true

5.)true

6.)false

7.)false

Explanation:

Answer:

False: All arthropods belong to the Class Insecta

True: All rodents belong to the phylum Chordata.

False: All amphibians belong to the class reptilia.

True: All primates are mammals.

False: A lion belongs to the genus Felis.

False: All mammals are primates.

True: All Insects and lobsters are arthropods.​​

Hope this helps :)

Answer:

A summary of the water cycle

The heat of the sun provides energy to make the water cycle work. The sun evaporates water from the oceans into water vapor. This invisible vapor rises into the atmosphere, where the air is colder. Water drops form in clouds, which then fall to Earth as precipitation (rain and snow).

Explanation:

Both RTK (Receptor Tyrosine Kinase) activation and GPCR (G-protein coupled receptor) activation can lead to downstream activation of GBPs, kinases, and transcription factors.

RTK activation and GPCR activation are two distinct signalling pathways involved in cellular communication. They can converge on common downstream signalling molecules. One such molecule is GBPs (GTP-binding proteins) which can be activated by both RTK and GPCR signaling. GBPs play a crucial role in transmitting signals and regulating various cellular processes.

Additionally, both RTK and GPCR activation can result in the activation of kinases. Kinases are enzymes that catalyze the transfer of phosphate groups to other proteins, thereby regulating their activity. The activation of kinases can trigger a cascade of signalling events leading to diverse cellular responses.

Moreover, both RTK and GPCR activation can ultimately lead to the activation of transcription factors. Transcription factors are proteins that bind to specific DNA sequences and regulate gene expression. They play a vital role in controlling the synthesis of proteins and influencing cellular functions.

On the other hand, Notch activation and Wnt activation are independent signalling pathways that are not directly associated with either RTK or GPCR signalling. Notch signalling is a highly conserved pathway involved in cell fate determination and development, while Wnt signalling regulates various processes during embryonic development and adult tissue homeostasis. Although they have critical roles in cellular signalling, they do not lie downstream of RTK or GPCR activation.

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Answer:

because scientist think it will help let us students learn more about the living world

Answer: The exclusion of microbes, such as bacteria and spores.

Explanation:

The swan-neck flask broth was able to remain sterile because the "dips" of the flask's neck acted as a reservoir to contain microbes that managed to get in through the open mouth.

Homologous chromosomes line up in the center of the cell at metaphase I.

MEIOSIS:

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Therefore, metabolic acidosis is the underlying acid-base imbalance in this situation.

Solids and liquids make up your blood. Water, salts, plus protein make up the plasma, which is the liquid component. Your blood contains more than 50% plasma. Red blood cells, white blood cells, plus platelets make up your blood's solid portion. Your organs and tissues receive oxygen from the lungs through red blood cells (RBC).

Because haemoglobin, which is transported in the blood and works to carry oxygen, is iron-rich & red in color, human blood is red.

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Answer:

what grade

Explanation:

Courtship and mating rituals are diverse and can vary greatly among different animal species. They are typically involved in attracting mates, establishing pair bonds, and ensuring successful reproduction.

1. Courtship and Mating Rituals Exist: Many animal species have elaborate courtship and mating rituals. These behaviors can serve various purposes, such as displaying fitness and attractiveness to potential mates, establishing territory, or demonstrating parental abilities.

2. Absence of Courtship and Mating Rituals: Some animal species may not exhibit elaborate courtship or mating rituals. This can occur in species where mating opportunities are abundant or where the reproductive process is straightforward without the need for elaborate displays.

The presence or absence of courtship and mating rituals can depend on various factors, including ecological pressures, social structure, reproductive strategies, and evolutionary history of the species. Different species have evolved different strategies to maximize their reproductive success, and these strategies can manifest as complex courtship rituals or simpler methods of attracting mates.

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The three statements of the cell theory are:

The cell theory is a fundamental concept in biology that describes the basic unit of life. It is a set of three principles that describe the properties and characteristics of cells, which are the building blocks of all living things.

The three statements of the cell theory are:

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Answer:

genes or genetic traits

Explanation:

Differences in traits such as hair texture are determined by differences in genes or genetic traits. These genes determine what physical characteristics a human will possess. They are determined by the parents of an offspring and vary from person to person

Answer:

natural selection

Explanation: that is the only thing that does cause evolution

The bacteria evolved because of natural selection, developing antibiotic resistance, hence option C is correct.

Natural selection is stated as a process by which the organism has the ability to survive to the fittest. Bacteria have been found to develop antibiotic-resistance genes in it making them, resistant to antibiotics.

Natural selection phenomena in bacteria happen when it develops antibiotic-resistance feature in their cells. When bacteria are exposed to the antibiotic, those who are susceptible to this eventually die, but having resistance to this they survive.

Gene flow, genetic drift, and natural selection both contribute to evolution, this refers to the genetic composition over time.

Therefore, option C is correct.

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Answer:

abusive behaviour can be classified in all sorts of relations but when inbetween peers most abusive relationships tend to be of bullying, competition or emotional.

Answer:

True

hope you have a great day!

The gram-negative cocci use some of the ammonium that is released as a source of nitrogen. The gram-positive bacilli receive biotin from the gram-negative cocci.

A bacterium is considered an auxotroph if it is unable to synthesis one or more crucial growth factors. As a result, it will not flourish in fermentation media deficient in these nutrients. For instance, when produced under strictly anaerobic circumstances, the yeast S. cerevisiae is auxotrophic for ergosterol and oleic acid.

Auxotrophs are used in a variety of biological processes, including the mapping of the biochemical pathways involved in the production of various proteins, the detection of mutagenic substances, and the introduction of various non-natural amino acids to replace natural amino acids in proteins.

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Mathematics would devolve into a game of chess without generalisation, as mathematicians since Peirce (1839-1914) and Poincaré (1854-1912) have repeatedly warned.

A generalisation is a type of abstraction in which specific instances' common properties are expressed as general concepts or claims.

The existence of a domain or set of elements, as well as one or more common characteristics shared by those elements, is posited by generalisations (thus creating a conceptual model). As such, they are the fundamental foundation of all valid deductive inferences (particularly in logic, mathematics, and science), where the verification process is required to determine whether a generalisation holds true in any given situation.

The process of identifying the components of a whole as belonging to the whole is also referred to as generalisation. By establishing a common relation between them, the parts, which may be unrelated when left alone, can be brought together as a group and thereby become a part of the whole.

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The relative humidity is approximately 22.9% based on the given wet bulb temperature of 10°C and dry bulb temperature of 14°C.

Wet bulb temperature: 10°C = 50°F

Dry bulb temperature: 14°C = 57.2°F

SVP at wet bulb temperature: 0.284 * \(e^(17.27 * 10 / (10 + 237.3))\)= 0.284 * \(e^(-7.09)\) = 0.284 * 0.000828 = 0.0002356 psi

SVP at dry bulb temperature: 0.284 *\(e^(17.27 * 14 / (14 + 237.3))\) = 0.284 * e^(-5.97) = 0.284 * 0.002562 = 0.0007296 psi

AVP = 0.0002356 - (0.00066 * (57.2 - 50) * 14.7) = 0.0002356 - (0.00066 * 7.2 * 14.7) = 0.0002356 - 0.0686 = 0.000167 psi

RH = (AVP / SVP at dry bulb temperature) * 100

RH = (0.000167 / 0.0007296) * 100 = 0.229 * 100 = 22.9%

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While life on Earth is based on carbon chemistry, there is growing evidence to suggest that life may be able to thrive using other elements and compounds as well.

For example, extremophiles have been found in some of the most hostile environments on Earth, including deep sea vents, volcanic hot springs, and even radioactive waste. These organisms have adapted to survive in environments with high temperatures, acidity, pressure, and radiation, which were once thought to be completely inhospitable to life. Additionally, the discovery of exoplanets (planets outside our solar system) has opened up new possibilities for finding environments that are suitable for life. While many of these planets are currently beyond our reach, future technologies may allow us to explore and study them in more detail. Ultimately, the search for life beyond Earth is a fascinating and ongoing endeavor that continues to push the boundaries of our understanding of the universe.

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Answer:

The consequences of the fall was man and woman will die man turned to mortal and will turn back into dust. woman would bring children in pain. relationships between husband and wife would be difficult. The ground was cursed labor would be very hard. human was banned from the paradise and the garden. no longer would they enjoy the holiness and justice they had in paradise.

Explanation:

Answer: 43 x 10^6  CFU.

Explanation:

Plate count is a method used to determine the number of viable microorganisms in a sample. When the bacterial concentration is high, serial dilutions are carried out in a 1:10 sequence. Then, the dilutions are successive dilutions keeping the dilution factor constant at each step. Small aliquots of these dilutions are seeded in medium contained in a Petri dish where the bacteria grow forming colonies. Then the plates are incubated and colonies develop both within the agar and on the surface.

If the concentration of the seeded aliquot is too high, the bacteria will grow too much and it will not be possible to distinguish the colonies. However, if the concentration is very low, the number of colony forming units (CFU) may be very low and thus can be counted.

Colony forming units are calculated:

CFU = Number of colonies / (volume seeded on the plate * dilution).

The dilution is 10^-6, the number of colonies counted is 43, and usually the volume plated is 0.1 mL, so we replace that in the equation:

CFU= 43 / (0.1 mL * 10^-6)

CFU= 43000000 = 43 x 10^6

Answer:

conduction is a process of transferring of heat and charge when two body kept in contact with each other

example = when we touch a heat metal with another metal then we feel heat

transfer of heat taken place

Examine the chemical formula shown here there are three total atoms two of which are hydrogen and one of which is oxygen and this chemical formula can be seen in the process of photosynthesis also.

The process of photosynthesis has been defined as the process in which green plants prepare their own food in the presence of sunlight and during this process heat energy has been converted into the chemical energy and this process has been taken place in the green plant only.

Photosynthesis has the process through which plant cells use carbon dioxide & water to create oxygen & energy rich organic compounds. They do so by converting sunlight ie light energy into chemical energy. This is possible due to presence of chlorophyll in them. Animals can't do so, as they dont have chlorophyll.

Therefore,Examine the chemical formula shown here there are three total atoms two of which are hydrogen and one of which is oxygen and this chemical formula can be seen in the process of photosynthesis also.

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DNA replication, anaphase I, II, and metaphase II are heritable exclusively.

solely including genomic variation: crossing over, metaphase 1 and

fertilizations 

Hereditary only: Only enough DNA is duplicated to supply the daughter cells.

Chromosomes in anaphase I and II are migrating to daughter cells to be passed on.

Chromosomes in metaphase II were randomly arranged in metaphase I and will only align to travel to each daughter cell.

Only genetic variation: as chromosomes cross over, they exchange information, which explains DNA variety.

Random chromosomal distribution during metaphase I will also produce variability.

Both: the newly created zygote has unique information from both parents during fertilisation (genetic variation), and this information is transmitted down to the following generation.

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An element that can bioaccumulate in lead to biomagnification is Mercury.

Hence, the correct option is d. Mercury.

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it is false to say that mitochondrial membranes commonly include covalently bound carbohydrate moieties.

Mitochondrial membranes do not commonly include covalently bound carbohydrate moieties. However, some proteins found in the mitochondrial membranes may have covalently bound carbohydrate moieties.

Mitochondria are organelles found in most eukaryotic cells, responsible for energy production through oxidative phosphorylation. Mitochondria have two membranes, the outer membrane and the inner membrane. The outer membrane is porous and allows the passage of small molecules, while the inner membrane is impermeable and forms the boundary of the mitochondrial matrix. The inner membrane is folded into cristae, which increase the surface area for oxidative phosphorylation.

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