What structures are responsible for the movement of chromosomes to the center of the cell in metaphase and their separation in anaphase?

Answers

Answer 1
The structures that are responsible for the movement of chromosomes to the center of the cell in metaphase is the spindle fibers, the cell attaches the centromeres to the spindle fibers to pull the sister chromatids to the center

In anaphase the sister chromatids are separated at the centromere and are pulled to the opposite poles of the cell by the spindle fibers

Related Questions

How would a bacteria explore a non-coding portion of DNA?​

Answers

Explanation:

Non-coding DNA sequences are components of an organism's DNA that do not encode protein sequences. Some non-coding DNA is transcribed into functional non-coding RNA molecules (e.g. transfer RNA, ribosomal RNA, and regulatory RNAs). Other functions of non-coding DNA include the transcriptional and translational regulation of protein-coding sequences, scaffold attachment regions, origins of DNA replication, centromeres and telomeres. Its RNA counterpart is non-coding RNA.

The amount of non-coding DNA varies greatly among species. Often, only a small percentage of the genome is responsible for coding proteins, but an increasing percentage is being shown to have regulatory functions. When there is much non-coding DNA, a large proportion appears to have no biological function, as predicted in the 1960s. Since that time, this non-functional portion has controversially been called "junk DNA".[1]

The international Encyclopedia of DNA Elements (ENCODE) project uncovered, by direct biochemical approaches, that at least 80% of human genomic DNA has biochemical activity, which they defined as being transcribed, a definition not shared with most other biologists.[2] Though this was not necessarily unexpected due to previous decades of research discovering many functional non-coding regions,[3][4] some scientists criticized the conclusion for conflating biochemical activity with biological function.[5][6][7][8][9] Estimates for the biologically functional fraction of the human genome based on comparative genomics range between 8 and 15%.[10][11][12] However, others have argued against relying solely on estimates from comparative genomics due to its limited scope.[citation needed] Non-coding DNA has been found to be involved in epigenetic activity and complex networks of genetic interactions and is being explored in evolutionary developmental biology.[4][11][13][14]

Which of the following is NOT a trigger of coral bleaching? death of zooxanthellae whaling acidification increased water temperature

Answers

Answer:

Whaling

Explanation:

The rest have all proved to trigger coral bleaching.

Answer:

whaling

Explanation:

How does a destructive force differ from a constructive force?

Answers

Answer:

Destructive Forces break down features on the Earth's surface. Constructive Forces build up features on the surface of the Earth.

Please help
Predict how the inability of a species to adapt within a changing environment may contribute to the extinction of that species.

Answers

It should be a in my opinion

Answer:

B

Explanation:

5. By about how much did average global temperatures increase from 1880 to
2020?*

Answers

2 degrees Fahrenheit and ~ 1 degree Celsius

5. Macromolecules which are both hydrophobic and hydrophilic and are a major
component of cell membranes are -

Answers

Answer:

All phospholipids have hydrophobic tails, consisting of the two hydrocarbon chains, and hydrophilic head groups, consisting of the phosphate group and its polar attachments. Consequently, phospholipids are amphipathic molecules, part water-soluble and part water-insoluble.

ASAP I NEED HELP I GIVE COINS!!
Based on the picture above, what habitat is this bird best adapted for?
Forest
Ocean
Marsh
Desert

Answers

Answer:

I would have to guess forest, as those claws look like they are for grabbing hold of branches, and the long beak usually means they eat worms.

tRNA is the molecule that brings the appropriate _______ _______ to the mRNA using an anticodon.
fill in the blank

Answers

I think the answer is cytoplasm :))

Based on the law of conservation of matter, which
statement is true about a chemical reaction?
А
Mass stays the same.
B
Matter is created.
С
Matter is destroyed.
D
Matter in a reaction can never change states.

Answers

Answer:

a

Explanation:

I would say A because matter is never created or destroyed it is altered

1) Eubacteria cells lack a nucleus, and are therefore________

Viewing eubacteria requires a microscope,because they all single celled organisms.another word for single celled is_______

Answers

Answer:

The correct answer is - prokaryotic and unicellular.

Explanation:

Eubacteria is known as the true bacteria and belongs to the prokaryotic type of cells which is characterized by no double-membrane organelles or the nucleus. All the genetic material is present in the cytoplasm itself.

These bacteria are single-cell microscopic organisms as they are very minute to see by the naked eyes and required a microscope to study. Another word for the single-cell organisms is unicellular.

1 Invasive plant species affect the interactions of living and nonliving components
of an ecosystem, so the removal of invasive plants is often necessary. The goal of
most plant-control methods is to disrupt or inhibit the function of different plant
systems. For example, insects can be used to chew through roots in order to
reduce a plant's ability to absorb water.
Which of these functions would be most immediately affected by a reduction in water
uptake by roots?
A Disease resistance
B Seed dispersal
C Sunlight absorption
D Photosynthesis

Answers

Answer: photosynthesis

Explanation:

Answer:

D. Photosynthesis

Explanation:

I got it "Correct"

I NEED HELP!
It explains in the image.

Answers

1. G1= 50, G2= 58, G3= 66, G4= 74, G5= 82

2. Generation 6

3. A possible scenario could be if no visually predators are near the habitat they could sing.

Which best explains the relationship between parent rock and soil composition? I will give the brainlest answer ​

Answers

Answer:

Weathered parent rock determines the number of organisms found in the soil. Weathered parent rock determines the amount of air found in the soil.

Explanation:

can i get brainliest

When the Earth's continental crust and ocean crust formed, they were different densities. Why did they differ in density and how did this affect their formation?

A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

B.) The continental crust was thicker and more dense. It sunk below sea level, separating land from water.

C.) The continental crust was thinner and less dense. It rose above sea level, separating land from water.

D.) The continental crust was thinner and more dense. It sunk below sea level, separating land from water.


I think it’s B, but I’m not completely sure. Help please!

Answers

Answer: A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

Explanation:

The Ocean crust is made out of rocks like basalt with a thickness of about four miles. The Continental crust on the other hand is made out of granite and other similar minerals and is between six and 47 miles in thickness which makes it thicker than the Oceanic crust.

With basalt being more dense than granite, the Oceanic crust sank and the Continental crust rose thereby separating land from water.

Answer:

Answer: A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

Explanation:

Toook the testttt :)))

FLVS??? :)

(GIVING BRAINLIEST!!)

Which of the following correctly lists the parts of the water cycle?

A) Evaporation, condensation, temperature, precipitation, collection
B) Condensation, build-up, runoff, precipitation, collection
C) Runoff, precipitation, evaporation, melting, condensation
D) Evaporation, condensation, precipitation, runoff, collection

Explain why

Answers

Answer:

D) Evaporation, condensation, precipitation, runoff, collection

Please give me brainlyest

Explanation: The water cycle shows the continuous movement of water within the Earth and atmosphere. System that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Then I does runoff and creates a new water source or goes back to a water source.

what are four things that cause weathering

Answers

Answer:

Rain, flood, wind, sunlight

Explanation:

Answer:

Well four things are frost weathering, thermal stress, salt wedging, and Biological Weathering.

Explanation: There are a few more, but you only needed four.

What do checkpoints do in the cell cycle? *

Answers

Answer:A checkpoint is a stage in the eukaryotic cell cycle at which the cell examines internal and external cues and "decides" whether or not to move forward with division.

Explanation: Easy Peasy

What are some "topics" to be considered when discussing the California Current
Ecosystem

Answers

Answer: Red tide events

Explanation:

Red tide events causing massive fish die-offs, unprecedented sea ice loss, erosion of coastal wetlands, and bleaching of coral reefs not only impact marine ecosystems but also communities, peoples' well-being, local businesses, and more.

These issues impacting ecosystems and people require solutions that consider ecosystems and people. These types of solutions are Ecosystem-Based Management, which considers social, economic, and ecological trade-offs when deciding how to address these issues.

Can someone please give me an explanation for Interphase and what happens in interphase?
I will mark brainliest
Please dont copy and paste

Answers

Answer:

In Interphase The cell grows in the (G1) phase, replicates DNA in the (S) phase

then prepares for mitosis in the (G2) phase. This all happens in Interphase. Hope this helps!

Explanation:

The image below depicts a bowling ball traveling down the lane and striking pins, knocking them down. Identify at least two forces acting on the bowling ball.


1. gravity

2. friction

3. air resistance
(also called ‘drag’)

4. density




Answers

Friction and air resistance

Help with number 3 !!!

Answers

All of the above factors effect climate

Which two animals are able to generate internal heat to maintain their body temperature in a coid environment

Answers

Parrots and Dogs are able to generate internal heat to maintain their body temperature in a coid environment. Parrots and Dogs are Endotherms. They generate most of the heat they need internally, when it's cold outside.

Does natural selection affect humans? How and why

Answers

Answer:

Yes it does affect humans.

Explanation:

Natural selection acts on the phenotype, but evolution is a change in the frequency of alleles in a population over time, a change in genotype. So natural selection acts on phenotype, but it is the connection to genotype that makes it the mechanism of evolution. Many traits vary among different members of a population of humans and animals, from body size to hair color, and those differences are often linked to differences in genes. Natural selection occurs when some of those traits help some individuals survive and reproduce more than others. In scientific terms, these hazards are referred to as selection pressures. They put pressure on us to adapt in order to survive the environment we are in and reproduce. It is selection pressure that drives natural selection "survival of the fittest" and it is how we evolved into the species we are today.

Which product is the result of light reactions in photosynthesis? O A. Water B. Glucose O c. Carbon dioxide OD. Oxygen ​

Answers

Answer:

D. Oxygen

Explanation:

Plants absorb carbon dioxide (CO2) and release oxygen for humans and animals to breathe in. Afterward, they'll release CO2 for plants to absorb, which forms a cycle.

Answer:

Oxygen

Explanation:

Both light dependent and light independent reactions in photosynthesis create glucose. But, only light dependent reactions convert carbon dioxide to oxygen.

Light independent: Carbon dioxide + water --> ATP and NADP(Energy/Glucose) and water

Light dependent: Carbon dioxide + water + light --> Glucose(ATP and NADP), water, and oxygen

A student proposes that the cell types shown here can be classified as to plant,animal,fungal,and bacterial. The student also proposes that an evolutionary relationship can be hypothesized based on the data. What evolutionary relationship and classification is best supported by the data

Answers

Answer:

Cell types I and III are animal and fungal cells, which are most closely related since they are eukaryotic cells that are heterotrophic.

Explanation: ¯\_(ツ)_/¯

Hybridization______.

Answers

Answer:

i guess it would be C but I'm not sure bout that

what are 2 stages of photosynthesis, and where does it take place?

Answers

photosynthesis takes place in the roots of the plant

PLSSSSS HELP

What are the three ways that minerals can form?

Answers

They are formed from the cooling and solidification of molten magma. that is the primary means of formation.

They could be precipitated out of solution.

They are also formed during metamorphism, under high temperature and pressure, minerals recrystalize and form new minerals.

hope this helps

brainliest?

5 star?

Answer:

1. igneous

2. sedimentary

3. metamorphic

Explanation:

A certain species of trilobite is known to have lived 300 million years ago. If this index fossil was found in a rock layer containing other fossils, what could you infer about the other fossils
a The rock layer killed the trilobite and the other fossils
b The other fossils are about 300 million years old
c The organisms that formed the other fossils are still living.
d The rock layer formed before the trilobite and other organisms

Answers

Answer:

b The other fossils are about 300 million years old

Explanation:

From the description of the problem given, we can correctly conclude that the other fossils are about 300 million years old and even the rock layers formed around that period in time too.

Fossils are the preserved remains of organisms that has once lived. Through the principle of relative dating we can determine the age of fossils and those of other related ones. According to the principle of fossil and fauna succession, "fossils succeed one another in a predetermined form". So, the fossils occurring together within the rock layers are of the same age.

outline how enzymes can be manufactured for use in biological washing powders

Answers

Answer:

Washing powder protease and protein

Explanation:

Other Questions
PLS HELP: I am unsure how to calculate this into final numbers.Cal Amity decided to survey 880 inhabitants of the Kingdom so that he could have a confidence level of 95% and a margin of error of 3%. He found that 72% of his sample answered "yes" to the second survey question, which was, "Have you done anything, or will you do anything, to prepare your kitchen for Gourmando's visit?"Mr. Amity can infer that, most likely, between _[blank A]_ and _[blank B]_ inhabitants of the Kingdom have done, or will do something, to prepare their kitchen before Gourmando's visit.Options:blank A: 3450blank B: 5000blank A: 0blank B: 300blank A: 3600blank A: 150blank B: 3600blank B: 3750 Type a paragraph explaining how the atoms in sugar molecules can be used to form amino acids and other large carbon-based molecules. Cite Work A researcher who does not want to manipulate or interfere with the behavior of research subjects would conduct a __________ study.A.cross-sectionalB.naturalistic observationC.caseD.longitudinalPlease select the best answer from the choices providedABCD List some harm reduction strategies that have been adopted to address addictive behaviours. Which is a natural source of greenhouse gases? Which expression is equivalent to 3 the 5th power? help i need help fast which feature is created by depositionA. rills B. meandersC. alluvial fansD. gullies Write the prime factorization of 16. Use exponents when appropriate and order the factors from least to greatest (for example, 2^2.3.5) What's the definition of fitness standard? PLS HELP ITS ABOUT PLANETS THSNKS HELPP In the fifteenth century, the Ming dynasty excelled at -A)weaponryC.shipbuilding.clock makingD.mining What organisms provides all the energy for an ecosystem? What does development mean to you? Read the following passage:He came home the same way, the front door slamming open, his hat on the floor and the voice suddenly become raucous shouting, Isnt anybody here?Using context clues, which is the best definition of raucous?Rowdy, disorderlyHave something withheldTo give upSassy, disrespectful What idea had Americans believed that they should own all the land from the Atlantic to the Pacific? :) which of the following was the us government allowed to do under the articles of confederation HELP PLEAASE I WILL GIVE BRAINLIEST PLSSSSSS I WILL GIVE BRAINLIEST Please help me I really need it Racecourse and discourse have the same root, course, which means "movement along a path."Based on this information, what is the most likely definition of discourse?extended discussion on a subjectfragmented conversationmajor field of studyscattered bits of information