At what stage in meiosis does a cell become haploid gametes?
Telophase II
Explanation:
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If the Earth didn't spin on it's axis but still revolved around the sun; describe what the earth's seasons would be.
Someone plz help with all the questions
Answer:
The surface of the pond froze overnight.boughSherry needs a new break on her motorcycle before she'll be able to race.Their dog got mud in its fur from rolling in a mud puddle.factin order for a liquid to turn into a solid,would you transfer energy in or out?What happens to speed of molecules
Answer:
transfer energy out and the speed of the molecules would decrease and the particles would vibrate less
Explanation:
what element did james farquhar search for in rocks
Answer:
Explanation:
oxygen
The answer, Farquhar and Kaufman believe, was oxygen.
How does the decrease in biodiversity impact an ecosystem?
Answer:
because the more alike species are The more they have to adapt to try and compete with one another So the more different a species is the less they have to compete
Answer:
the decrease in biodiversity may cause a significant reduction in the productivity of the ecosystem. The loss of biodiversity means genetic variations are lost and the overall genetic pool reduces.
Explanation:
Egde 2022
When the arm extends (straightens), which muscle contracts?
How does the mercalli scale differ from the richter scale
Answer:
The Richter scale measures seismic waves while the Mercalli scale measures things that humans can see and the intensity people can feel.
What affects how rain travels when it hits the Earth?
Answer:
Along with evaporation and condensation, precipitation is one of the three major parts of the global water cycle. Precipitation forms in the clouds when water vapor condenses into bigger and bigger droplets of water. When the drops are heavy enough, they fall to the Earth.
Explanation:
from national geographic yw
Why can information only pass in one direction across synapse?? pls help !!
help please !
1.) the closer a biome is to the equator , the more we would expect it to be
a. warmer & wetter
b. cooler & wetter
c. warmer & drier
d. cooler & drier
2.) the tundra biome & the desert biome are both very dry , but
a. the desert is always hot
b. the desert has a wider temperature range
c. the tundra had a wider temperature range
d. they are also similar in temperature
Answer:
1) A 2) C?
Explanation:
1) Most tropical places lay around the equator 2) Tundra's can get cool
list different causes of disease
Answer:
Bacteria
Viruses
Fungi
Parasites
Explanation:
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Which characteristic of an animal species would make it a good candidate for domestication as a companion animal?
coming from an exotic environment
complex feeding requirements
aggressiveness
good social qualities
Answer:
good social qualities
Explanation:
Companion animals can also be called pets. Companion animals are kept by humans for purposes of protection and pleasure. Companion animals are usually animals with a gentle nature and good social qualities. Edge 2021
What diagram demonstrates how crossing-over contributes to genetic variety during meiosis?
Answer:c
Explanation:trust me
The diagram that demonstrates how crossing-over contributes to genetic variety during meiosis is diagram C.
Crossing over refers to the recombination or interchange of genetic material. This process (crossing over) occurs between non-sister chromatids during meiosis.Crossing over specifically occurs in the prophase I of meiosis.In conclusion, the diagram that demonstrates how crossing-over contributes to genetic variety during meiosis is diagram C.
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plzzzzzzzzzzzzzzz help
Answer:
c.
Explanation:
PLZ HELP WILL GIVE 100 POINTS AND BRAINLIEST In comic strip form, draw the stages of binary fission asexual reproduction. You should have at least three drawings in the strip. Be sure to include and label the nuclei, cell walls, cytoplasm, and daughter cells.
When your drawings are complete, add any additions to make them like a comic strip you find in a newspaper. You can include dialogue between the cells or headlines for each picture. You can make your strips funny, dramatic, scary, or any other appropriate style you want.
Binary fission is a type of asexual reproduction observed in bacteria, in which one cell divides into two daughter cells.
What is binary fission?During binary fission, there is no involvement of two parents and also there is no gamete formation occurring, so it is categorized into asexual reproduction.
There are several steps during binary fission, firstly bacteria replicates its DNA, secondly, it grows and increases the number of a cell organelle, now it segregates DNA into two parts, at the end splitting this large cell.
In DNA replication bacteria uncoils its chromosome and copy this genetic information to transfer it to subsequent generations.
Therefore, replication, cell growth, segregation, and splitting of the cell are stages of binary fission.
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Scientists have found that DNA methylation suppresses crossing-over in the fungus Ascobolus immersus. Which of the following questions is most appropriately raised by this specific observation?
A
Is the level of genetic variation in the gametes related to the amount of DNA methylation observed?
Submit
B
Without crossing-over will gametes be viable and be able to produce zygotes?
с
Does DNA methylation result in shorter chromosomes?
D
Is this species of fungus a diploid organism?
A
O
Answer: Is the level of genetic variation in the gametes related to the amount of DNA methylation observed?
Explanation:
The question 'is the level of genetic variation in the gametes related to the amount of DNA methylation observed?' is the MOST appropriate question raised by this observation.
Epigenetics refers to all changes in gene expression that are not associated with the DNA (nucleotide) sequence.Epigenetic modifications include DNA methylation, histone modifications (e.g., acetylation methylation, etc) and regulatory non-coding RNA pathways.The variation in the DNA methylation pattern may be associated with suppression (or activation) of gene expression.In conclusion, the question 'is the level of genetic variation in the gametes related to the amount of DNA methylation observed?' is the MOST appropriate question raised by this observation.
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Which of the following best describes a characteristic of DNA that makes it useful as hereditary material?
Please give 1 answer.
Nucleotide bases in one strand can only be paired with specific bases in the other strand.
There are many different types of nucleotide bases that can be incorporated into DNA
The nucleotide bases can also be used to provide the energy needed for reproduction
Nucleotide bases can be randomly replaced with different nucleotide bases to increase variation
Answer:
A. Nucleotide bases in one strand can only be paired with specific bases in the other strand.
Explanation:
Had the same question on a test. Hope this helps :)
DNA is a genetic material found in every living organism. DNA is made up of purines, pyrimidines, a pentose sugar, and phosphate backbone. DNA is a genetic material that carries information from parent to daughter cells.
The correct answer is:
Option A. Nucleotide bases in one strand can only be paired with specific bases in the other strand.
Characteristics of the DNA include:
1. DNA is a double-stranded genetic material, which is made up of four nitrogenous bases, adenine, cytosine, thymine, and guanine.
2. These nucleotides bind to specific nucleotide sequences present on the template strand of the DNA.
3. DNA consists of coded sequences known as genes, which are inherited from the parent to the daughter cells.
4. DNA undergoes a unique semi-conservative mode of replication.
Thus, the correct answer is the ability of the DNA nucleotides to bind to the specific bases in the other strand.
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The cell theory is a scientific explanation about the characteristics of cells in living things discovery of cells occurred in the 1600s which piece of equipment my students in science class used to investigate the cell theory
Answer:
Then, what is the question????
In 1665, Robert Hooke, a scientist published Micrographia, a book full of illustrations and descriptions of organisms observed under the recently invented microscope, hence Hooke's discovery of the cell was successful with the invention of the microscope.
What is Microscope?A microscope is defined as a laboratory instrument used to examine objects that are too small to be seen by the uncovered eye. Microscopy is the science of examining small objects and structures using a microscope. The word microscopic means invisible to the eye unless aided by a microscope.
Without the microscope, we would not know about the existence of cells or how plants breathe or how rocks change over time. Cell theory was discovered by Robert Hooke in 1665 with the help of a microscope.
Thus, in 1665, Robert Hooke, a scientist published Micrographia, a book full of illustrations and descriptions of organisms observed under the recently invented microscope, hence Hooke's discovery of the cell was successful with the invention of the microscope.
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if something has a high kinetic energy, what would the temperature and
motion of molecules most likely be?
A. high temperature, slow motion of molecules
B. low temperature, fast motion of molecules
C. high temperature, fast motion of molecules
D. low temperature , slow motion of molecules
You learned in the reading that some symbiotic relationships are helpful and some are harmful. Look at the symbiotic relationships listed below and select all where at least one organism is harmed (the reading calls these harmful relationships). Group of answer choices Commensalism Parasitism Mutualism Predator-Prey Competition
Answer: Parasitism, Predator-Prey, Competition
Explanation:
The symbiotic relationship is the relationship in which two distinct species are associated with each other. In the symbiotic relation the species may get harm or benefit of association. Parasitism can be defined as the symbiotic relationship in which one species get harmed and other one receives the benefit. For example, malarial parasite plasmodium derives the nourishment from the host body (human). Predator-prey relationship is also harmful as the predator kills the prey to obtain it as food. Competition is harmful in the sense two or more organisms of the same or different species compete for the same resource, the most dominant receives the resource the inferior organism is either killed or harmed in the fight for resources.
How long does the revolution of the moon around earth takes
Answer:
27 Days
Explanation:
The moons takes 27 days to orbit the earth
3. Assertion (A):- Plasma membrane is a selectively permeable membrane.
Reason(R):- Plasma membrane allows entry and exit of substances from cell through the process of diffusion.
a. Both A and Rare true and Ris correct explanation of the A
b. Both A and Rare true but Ris not the correct explanation of the A
C. A is true but Ris false
d. Both A and Rare false
4. Plasmodium is an example of Bacteria
Answer:
the answer is option B. both A and R are true but R is not the correct explanation of A
HELP ME
this is a K12 question
The weather is warm and dry.
Which change would a cold front bring?
rain or thunderstorms
extended period of rain or snow
dry air and sunny skies
several days of gray skies
Answer:
rain or thunderstorms
Explanation:
Answer: It brings rain or thunderstorms.
Hope this helps!
An animal cell with 28% water content is placed in 3 % sugar solution. What would be your observation?
Answer:
osmosis
Explanation:
What happens to water in the desert after a flash flood?
Where do fungi get their food supply
Answer:
They get their food by growing on other living organisms and getting their food from that organism. Others get their food from dead matter.
Explanation:
from what i know
How was early Earth's atmosphere different from today's atmosphere?
Answer:
The early Earth was very different from our Earth today.
Explanation:
Earth's first atmosphere had lots of water vapor but had almost no oxygen. Later, frequent volcanic eruptions put several different gases into the air (Figure 12.13). These gases created a new type of atmosphere for Earth.
Answer:
The atmosphere we enjoy today is radically different from the atmosphere that formed with the Earth billions of years ago. ... As the Earth cooled enough to form a solid crust (4.4 billion years ago), it was covered with active volcanos. These volcanos spewed out gasses, like water vapor, carbon dioxide and ammonia.
How has the Earth's atmosphere changed over time?
Water vapor, carbon dioxide, methane, ammonia, and other gases similar to the ones produced by volcanoes today were expelled. Over a vast amount of time, millions of years, the earth gradually cooled. ... From these clouds, the oceans formed and the oceans absorbed a lot of the carbon dioxide in the atmosphere.
Explanation:
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Multiple choice question, someone please answer
The diagram shows a model of a section of double-stranded DNA. The straight lines and dotted lines represent chemical bonds between the
components of the molecule.
During DNA replication, which chemical bonds break apart? Select all that apply.
The DNA has two double strands, and they have different chemical bonds, so during the DNA replication, the hydrogen bonds that are present between the two strands break to separate the DNA.
What role does DNA replication play?DNA replication is the process of making two DNAs from a single DNA, and here the hydrogen bonds that are present between the bases, such as thymine and adenine, which have two hydrogen bonds, and guanine and cytosine, which have three hydrogen bonds, break. The purpose of DNA replication is to make a copy of the genetic content of the cell so that it can be passed to other cells.
Hence, the DNA has two double strands, and they have different chemical bonds, so during the DNA replication, the hydrogen bonds that are present between the two strands break to separate the DNA.
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