The structure that hotds two chromosomes together until they separate for cett divisionois




1.chromatid .

2.cytoplasm .

3.chromatin .

4.centromere

Answers

Answer 1
The answer is 4. Centromere

Related Questions

fatty acids are the building blocks of.

A. lipids
B. amino acids
C. DNA
D. monosaccharides

Answers

It’s most likely lipids! Hope this helps

Fatty acids are building blocks of lipids. The correct option is A.

Fats and oil are known as lipids.

Lipids are part of the classes of food which are made up of high proportion of carbon and hydrogen with very little oxygen.

Fats are solids and oils are liquids at room temperature. They serve the following functions to the body:

They provide the body with energyThey are solvents for fat-soluble vitamins and hormones.

Before lipids can be absorbed into the body, they must be broken down into fatty acids and glycerol.

Therefore, fatty acids are building blocks of lipids.

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explain why germinating seeds were used in this investigation cellualr respiration

Answers

Explanation:

As oxygen is consumed to provide energy, germinating seeds release carbon dioxide. ... HYPOTHESES: The experimental hypothesis is that germinating seeds will show a greater rate of respiration than control glass beads. Additionally, that at higher temperatures, the rate of cellular respiration in the seeds will increase.

How do vaccines act on germs?

Answers

Answer:

a vacine work by traning the immune system by reconize and combine either virus or bacteria.

What do you mean by taxonomy?​

Answers

Answer:

The answer is below

Explanation:

Definition:

Taxonomy - The science of addressing, describing and classifying organisms (plants, animals and microorganisms of the world).

Why, in your opinion, are there no final answers in science? Relate your answers to the study of the learning process.

Answers

Answer:

In science, answers do not have a final answer because not everything about the answer can be answered. Nothing can be told as 100% correct, and parts of the answer can change over time. For example, if you are doing a science project on how much water a plant needs to grow, each plant will grow differently, and you would have to wait and see how much water it needs to grow.

Hope this helped.

Invasive species occur throughout California. There are many mechanisms in which invasive species get introduced and then are able to thrive. One possible reason, of many, why the New Zealand mud snail was able to get established in Putah Creek was

Answers

I have no idea hopefully someone can help you with this

Solid waste material from waste water is called

Answers

Answer:

sewage sludge

Explanation:

The solid material waste from waste water is called sewage

sludge

Explanation:

Sewage sludge is the solid, semisolid, or slurry residual material that is produced as a by-product of wastewater treatment processes. 

HELP PLEASE FAST ASAP PLEASE HELP

Answers

Answer:

D. Their ability to replicate very fast and natural mutations combine to allow them to evolve rapidly

Explanation:

They develop mutations in their DNA that can be resistant to the drugs given.

what is the strongest vasoconstrictors secreted by kidney?​

Answers

Answer:

Explanation:

                       Endothelin is one of the most potent renal vasoconstrictors. Endothelin plays an essential role in the regulation of renal blood flow, glomerular filtration, sodium and water transport, and acid-base balance

Classify each of the following changes as either exothermic or endothermic. (4 points) Burning propane: ____________________ Using a chemical hand-warmer: ____________________ Photosynthesis in plants: ____________________ Lighting a laboratory burner: ____________________

Answers

Answer:

Classify each of the following changes as either exothermic or endothermic. (4 points) Burning propane: _____exothermic_____________ Using a chemical hand-warmer: __________endothermic_________ Photosynthesis in plants: _________endothermic___________ Lighting a laboratory burner: ________exothermic____________

how to solve this ÷±≈∨∉㏒㏑∡

Answers

Answer:

what's that

I'm clueless

What are sustainable use practices?
(a) any materials that exist in nature and that are used by humans

(b) the managed consumption of natural resources to prevent their depletion or environmental destruction

(c) the deployment of fossil fuels to environments that previously did not have access to such resources

(d) ways in which individuals are able to conserve native animal and plant species

Answers

Answer:

The answer is B,

Explanation:

B. The managed consumption of natural resources to prevent their depletion or environmental destruction

Sustainable practices are managing natural resource consumption to prevent depletion or environmental destruction. Therefore, option "B" is correct.

what are sustainable practices?

Manageable practices support biological, human, and monetary well-being and imperativeness. Supportability assumes that assets are limited, and ought to be utilized moderately and shrewdly so as to long haul needs and outcomes of the manners by which assets are used.

Organizations and individuals that consideration about supportability are likewise less inclined to infringe upon the regular living spaces of wild creatures, consequently safeguarding the biodiversity of our planet.

Therefore, sustainable practices help the planet breathe and are also beneficial for human beings.

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9. Which is the SI base unit of mass?
liter
meter
pound
kilogram

Answers

Answer:

it's D, KILOGRAM

Answer:

The answer of this question is kilogram

Explanation:

may this answer is helpful for you

what neurotransmitter is deficient in parkinson's disease and Alzheimer's disease?

Answers

Scientists believe a lack of dopamine causes Parkinson's disease. That deficit, they say, comes from a disorder of nerve cells in the part of the brain that produces the chemical. However, dopamine isn't the only neurotransmitter affected in Parkinson's disease.

You are part of a research group that is attempting to improve on the beneficial genetic modification of golden rice, to further reduce
global hunger issues. Which of the following difficulties will you NOT encounter?
A. The genes could transfer into local wild plants
B. The seeds could be expensive,
C. The modified crops could make people very sick.
D. Biodiversity could be reduced,

Answers

Answer:

C.

sorry if this is wrong

If I were a part of a research group that is attempting to improve on the beneficial genetic modification of golden rice, to further reduce global hunger issues, then I would not encounter that the seeds could be expensive.

What is golden rice?

Golden rice is genetically modified rice that contains provitamin A. This compound is responsible for the yellow-orange color of the rice, hence the name golden rice.

Golden rice can prevent vitamin A deficiency.The crop is available in countries such as Indonesia, Bangladesh, and the Philippines.It is much cheaper than the normal white rice available in the market.Golden rice is the modified version of normal rice which no additional cost and with enriched nutrients.

Hence, option B is the right answer.

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White Leaf Disease is a devastating disease that
affects sugar cane crops in Thailand and has become a
major issue for farmers. The disease starts with a white
line forming in the center of the sugar cane's leaves,
which can change in size and shape as it develops.The sugar cane's new leaves will become increasingly whiter, often having stunted growth, and resulting in the sugar cane being less productive than the non-
infected plants, Scientists are trying to determine
what organelle must be damaged to produce the
observed results,

Answers

White leaf disease is caused by phytoplasma. The disease infects the leaves and create white spots in them.

The farmers in Thailand are facing this issue with sugarcane crops. The organisms infect phloem tissues in sugar cane and cause the leaves to turn white.

The size and shape can change as sometimes there are fine white lines created while sometime there are white spots.

Scientists are trying to deal with such disease and an spray of liquid copper has been found beneficial to treat this disease. The white spot fungus stops to spread with the spray.

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Describe the similarities and differences between the cheek cell wet mount and dental plaque wet mount.

Answers

Answer:

Cells from the cheek are a type of epithelial cell, similar to skin. ... They can be seen faintly even at 40x (scanning power), but the most dramatic images are at 400x where the nucleus is clearly visible as a dark spot in the center of the cell.

Explanation:

Which of the following are functions of the reproductive organs in animals?

I. Produce sperm
II. Support the body
III. Protect the internal organs
IV. Make the eggs

I and II
II and IV
II and III

Answers

Answer: None of the above

                 (I and iv)

Explanation:

1.The reproductive system enables animals to create offspring.

2.Invertebrate animals exhibit a wide range of reproductive behavior, but the bottom line is that at some point during the process, females create eggs and males fertilize the eggs, either internally or externally.

Answer:

II and IV

Explanation:

Vị trí các cacbon trong cấu trúc của đường đềôxyribô trong 1 nuclêôtit được thêm dấu phẩy vì:

Answers

Answer:

hi please answer my questions.

which description best defines the term season?

Answers

Answer:

Are one of the four period of a year

Explanation:

(summer,autaumn,winter and spring)a period of year charactized by particular condition of weather , temperature .etc, the rainy season
Four different parts of the year

Which of the following would scientists use as the best indicator of the health of a water system

1 . Temperature & turbidity
2. Water currents & turbidity
3. Convolution & turbidity
4. Submersion and turbidity

Answers

Answer:

Explanation: 2

The best indicator of the health of a water system is Temperature & turbidity. That is option 1.

Monitoring of Water quality

The Water quality can be monitored in various ways which involves the sampling and analysis of water constituents and conditions.

The importance of monitoring water quality is investigate:

Introduced pollutants, such as pesticides, metals, and oils, and

Constituents found naturally in water that can nevertheless be affected by human sources, such as dissolved oxygen, bacteria, and nutrients.

To show that water source is healthy, the following indicators are put into consideration:

temperature,

turbidity,

total alkalinity, and fecal bacteria.

Turbidity is measured using turbidity sensor and temperature is measured using thermometer.

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How many newborn would you expect to have cystic fibrosis in a population of 10,000 people?

Answers

Answer:

6

Explanation:

10,000 people divided by 1700 is about 5.8

round 5.8 to a whole number at you will expect 6 people to have cystic fibrosis in a population of 10,000 people

Replication of eukaryotic DNA a. must be controlled to coordinate with the cell cycle b. takes place twice during each cell cycle c. must occur faster than replication of prokaryotic DNA d. takes place during mitosis

Answers

C. must be controlled to coordinate with the cell cycle

Hope this helps :)

What is a Bivalents in biology ​

Answers

Answer:

A pair of homologous chromosomes is called Bivalents

Answer:

two homologous chromosomes that have joined in synapsis at Prophase I of Meiosis I.

Hope this helps!

--Applepi101

What’s the following have contributed to historical increases in the global human population?
A.) increases in the number of deaths
B.) unavailability of clean water
C.) decreases in the birth rate
D.)Advances in hygiene

Answers

Answer:

D

Explanation:

people take it into account that the environment is fine for growing children hence giving birth

Un ratón A de pelo blanco se cruza con uno de pelo negro y toda la descendencia obtenida es de pelo blanco. Otro ratón B también de pelo blanco se cruza también con uno de pelo negro y se obtiene una descendencia formada por 5 ratones de pelo blanco y 5 de pelo negro. ¿Cuál de los ratones A o B será homocigótico y cuál heterocigótico

Answers

Answer:

please translate to english

Which of the following describes the product of Meiosis?
A. 4 genetically identical diploid cells
B. 4 genetically unique diploid cells
C. None of these are correct
D. 2 genetically unique haploid cells

Answers

Answer:

C

Explanation:

meiosis made 4 haploid daughter cells, with 1 round of dna replicates and followed by 4 division of haploid daughter cells

__________Are the subunits making up nucleic acids

Answers

Answer:

Nucleotides.

Explanation:

Nucleic acids (DNA, RNA) are large polymers, made out of monomer building blocks called nucleotides. The nucleotides have a similar structure with three 'subunits': A phosphate group

9. Starch molecules are hydrolyzed into smaller units
known as
(1) glycerols
(2) amino acids
(3) simple sugars (4) proteins

Answers

Answer:

3

Explanation:

the smallest unit of a starch molecule is a simple sugar.

I hope this helps

Starch is a polymeric molecule which hydrolyze into smaller units which are simple sugars. Starch is a homo-polysaccharide. Thus, the correct option is 3.

What is Starch?

Starch (amylum) is a polymeric carbohydrate which consists of numerous units of glucose which are joined by glycosidic bonds. This polysaccharide is formed by the most green plants for the storage of energy in the mesophyll and bundle sheath cells of leaves.

Starch is a white, granular, organic compound which is produced by all the green plants. Starch is a soft, white, tasteless powder which is insoluble in cold water, alcohol, or other organic and inorganic solvents. The basic chemical formula of the starch molecule is (C₆H₁₀O₅)ₙ.

Therefore, the correct option is 3.

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Hereditary fructose intolerance is a genetic condition caused by a variant in the ALDOB gene, which is critical for fructose metabolism. Infants with this condition do not initially display symptoms, but as they are transitioned from breast milk or formula to solid foods, in particular fruit-based foods, they begin to display symptoms, which include vomiting, diarrhea, and low blood sugar. Individuals who do not consume fructose do not display these symptoms. Which of the following describes this condition?

a. It is incompletely penetrant, due to environmental factors.
b. It has variable expressivity, due to environmental factors.incorrect
c. It is incompletely penetrant, due to genetic factors.
d. It has variable expressivity, due to genetic factors.

Answers

It has variable expressivity due to the environmental factors.

The variation in expressivity occurs due to the environmental factors of that individual. Expressivity describes the differences observed in the phenotype between two individuals that belongs to same genotype.

In the condition, when the patient is allowed to consume the fructose based food, so it expresses the change in its body due to no tolerance against fructose so we can conclude that the change occurs due to environment not due to genetics.

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