Answer:
M
Explanation:
Mitosis is a type of cell division that involves the production of two daughter cells that are genetically identical to one another. Mitosis encompasses two stages namely: Interphase and Mitotic phase. The interphase which further consists of G1, S, and G2 phases, is a preparatory phase for the cell to grow and replicate its DNA.
However, the separation of the sister chromatids (replicated chromosomes) into two daughter nuclei occurs in the Mitotic or M phase. Note that the M phase comprises of stages that includes: prophase, metaphase, anaphase and telophase.
Answer:
M phase
Explanation:
Why did Mendel study pea plants?
They reproduce asexually and have one trait that is easy to observe.
They reproduce asexually and have many traits that are easy to observe.
They reproduce sexually and have one trait that is easy to observe.
They reproduce sexually and have many traits that are easy to observe.
Answer:
For Gregor Mendel, pea plants were fundamental in allowing him to understand the means by which traits are inherited between parent and offspring. He chose pea plants because they were easy to grow, could be bred rapidly, and had several observable characteristics, like petal color and pea color.
Explanation:
Gregor Mendel chose the pea plants for his experiments because the garden pea is an ideal subject in the study of genetics for the following reasons: The presence of observable traits with contrasting forms. It produces many offspring in one cross. Short life cycle.
Why did Mendel choose pea plants to study?Solution: Pea plants were chosen for Mendel's experiments because they are easy to grow, have a short life period, and produce larger flowers. Pea plants are also self-pollinated.
What was the purpose of the pea plant study?Gregor Mendel describes his experiments with peas showing that heredity is transmitted in discrete units. From the earliest time, people noticed the resemblance between parents and offspring, among animals and plants as well as in human families. Gregor Johann Mendel turned the study of heredity into a science.
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How is cell differentiation different than mitosis?
Cell differentiation is the process by which cells specialize to achieve their required functions. In order for a cell to differentiate, it will express specific genes. ... Importantly, mitosis produces cells that are identical to each other (clones).
Which of the following types of particles found in an atom has no charge?
A. electron
B. nucleus
C. neutron
D. proton
Answer:
Neutron
Explanation:
Neutrons are uncharged particles found within all atomic nuclei.
Which of the following best explains why DNA fingerprints can be used to identify an individual, such as from a crime scene sample?
Group of answer choices
DNA is inherited from both maternal and paternal parents
DNA from 2 different species can be combined using restriction enzymes
DNA is used to make proteins during protein synthesis
Each individual has a unique DNA sequence, with the exception of identical twins
Answer:
4.
Explanation:
Everyone's DNA is unique unless they are identical twins or if you have some kind of transplant.
Of the following best explains why DNA fingerprints can be used to identify an individual, such as from a crime scene sample it is the situation that Each individual has a unique DNA sequence, with the exception of identical twins. The correct answer is option 4.
What are identical twins ?These are the babies that are formed from multiple fusion of gametes and resulting into double fertilization.
DNA is inherited from both maternal and paternal parents. Yes, it is so but the pattern is not same as it will be possible to get the idea of the pattern and analyse along with the prediction of the genome as only few % is predicted.
DNA is used to make proteins during protein synthesis and this situation is clearly correct too but the fact is that this is not helping in the case of DNA fingerprinting where it is not easy to firstly see the DNA pattern then the RNA and then the amino acids and then the proteins.
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please put an explanation will give 25 points and brainliest
What is it called when leaves release excess water
it is known as transpiration
in the phloem, what goes out?.
Answer:
His heart. If you talking about the poem, "MY HEART GOES OUT".
Explanation:
Final Practice: Read each statement. If the statement is true, write “T”. If the statement is false, write “F”.
Answer:
F, i just guessed because I do not see the statements
Explanation:
17. What are some of the major causes of extinction today?
Help! Will mark brainiest.
Which of the following are representative organisms?
a. Sponges
b. Cnidarians
c. Roundworms
d. Annelids
e. Mollusks
f. Arthropods
g. Echinoderms
h. Vertebrates
Answer:
Roundworms
most sensible
Scientists have concluded that Tiktaalik lived when deciduous trees began appearing on land, an event that occurred hundreds of millions of years ago. Which radiometric probe (Carbon-14, Iodine-129, Uranium-238) would you choose to determine a more accurate age of the Tiktaalik fossil? Explain your reasoning.
PLEASE HELP ME ILL GIVE 25 POINTS
Answer:
Carbon
Explanation:
Carbon leaves a bigger footprint when investigating fossils or skeletons scientists use carbon samples.
The Carbon-14 radiometric probe should be used to determine a more accurate age of the Tiktaalik fossil. Radiometric dating is the technique used to calculate the age of fossils.
What is radiometric dating?Radiometric dating or radioactive dating is a technique which is used to date the materials such as rocks or carbon, in which trace amounts of radioactive impurities were selectively incorporated when they were formed in the fossil such as trees.
Radiometric dating is used to calculate the age in years for a geologic material by measuring the presence of a short-life radioactive element in the fossil. For examples, carbon-14, or a long-life radioactive element plus its decay product which is potassium-14 or argon-40.
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hi could somebody help me
Answer:
MOUTH:
Food becomes moistFood is cut into piecesFood is squeezedSTOMACH:
Proteins are broken downFood is mixed with acidCarbohydrates are broken downI hope this helps :)
Explanation:
plz mark B R A I N L I E S T
Answer:
Mouth :
Food is cut into piecesCarbohydrates are broken downFood is squeezedStomach :
Proteins are broken downFood becomes moistFood is mixed with acidhope it helps!
HELLLLPPPPPPPP Which statements describe asexual reproduction? Check all that apply
results in offspring with different DNA than parent
results in offspring with the same DNA as parent
requires only one parent to produce offspring
requires two parents to produce offspring
includes cell divisions that are similar to the cell divisions in meiosis
includes cell divisions that are similar to the cell divisions in mitosis
Answer: the second one, the third one, and the last one.
Explanation:
Answer:
Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent. Sexual reproduction involves two parents and produces offspring that are genetically unique.
Explanation:
Describe how ATP synthase produces ATP.
Answer:
so it spins the hydrogen molecules to make the ATP
Explanation:
it occurs in the inner membrane of the mitochondria. The electrons drop off the energy and the hydrogen atoms are moving through the Protein channels/pumps. after that the NADH turns into nad+ and the fadh2 turns into fad. these then go back to the citric acid cycle to get the electrons back. (known as electron carriers) the hydrogen molecules get pumped up to the inner membrane space which would be active transport since we are going from low to high concentrations. the hydrogen molecules go down the atp synthase which spins to make the atp. this would be passive transport since its moving from high to low concentrations.
Prokaryotic cells reproduce by a process called a. mitosis. b. meiosis. c. binary fission. d. binary fusion. 2. In eukaryotic cells, DNA is copied during a phase of the cell cycle called a. M phase. b. S phase. c. G1 phase. d. G2 phase. 3. The cytoplasm of a eukaryotic cell divides by a process called a. mitosis. b. meiosis. c. replication. d. cytokinesis. 4. The fibers that extend from centrosome to centrosome during mitosis are a. polar fibers. b. spindle fibers. c. kinetochore fibers. d. binary fibers. 5. In the G0 phase, cells a. synthesize DNA. b. prepare for cell division. c. exit from the cell cycle. d. move their chromosomes to the cell equator.
Answer:
1. binary fission
2.s phase
3.cytokinesis
4 spindle
5.exit from cell cycle
Cell cycle is essential for the cell to divide and grow. The correct answers are 1. Binary fission, 2. S-phase, 3. Cytokinesis, 4. Spindle fibers, 5. Exits from the cell cycle.
1. Binary fission: The parent cell divides into two brand-new daughter cells. The genetic material is split and duplicated into two pieces. Here, the DNA of each daughter cell is duplicated.
2. S-phase: DNA replication and a large portion of DNA repair activities take place in cells during the S phase, which is situated between the G1 and G2 phases of the cell cycle.
3. A cell splits into two daughter cells by physically dividing its cytoplasm through a process called cytokinesis.
4. Spindle fibers: When a cell divides during mitosis and meiosis, spindle fibers are the filaments that make up the mitotic spindle. During nuclear division, they play a major role in transporting and sorting the chromosomes.
5. G0 phase: G0 phase cells do not actively prepare to divide. When cells leave the cell cycle, they enter a quiescent (inactive) state. Some cells briefly enter G0 before the start of G1 is signaled by an outside source.
Therefore, the correct answer is c) binary fission, b) S-phase, c)cytokinesis, d) spindle fibers and e) exit from cell cycle.
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Which of the following is true regarding lipids? *
1 point
Answer:
there are no answers, you can put them in the comments
Explanation:
If you are analyzing the nutrients in a food, how would you decide if the food is healthy or not?
Answer:
If a food has a daily value of 5% or less of a nutrient, it is considered to be low in that nutrient. A food is a good source of a nutrient if the percent daily value is between 10% and 19%. If the food has 20% or more of the daily value, it is considered an excellent source of that nutrient.
Explanation:
a single strand of DNA helix has the code CGCTAA. which would be the complementary code on the other strand of helix
Answer:
The other side would be GCGATT
Explanation:
Adenine (A), cytosine (C), guanine (G), or thymine (T).
A (adenine) always pairs with T (thymine)
C ( cytosine) always pairs with G (guanine)
Hope this helps.
Sorry if it doesn't.
If new experimental findings contradict a scientific theory, what might happen to the theory?
A. The new evidence could be accepted and the theory changed.
B.The theory could become law.
C.The theory could stay, ignoring the new evidence.
D.The new evidence could be rejected because it does not support the theory.
Answer:
A. The new evidence could be accepted and the theory changed.
Explanation:
most reasonable answer
PLZ HELP ITS MY LAST QUESTION I WILL MARK BRAINLIEST!!!!
Which of the following is true regarding enzymes?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Enzymes can only be used once during a reaction.
(Choice B)
B
Enzymes are reusable.
(Choice C)
C
Enzymes are usually carbohydrates.
(Choice D)
D
Enzymes denature at their optimum temperatures.
Answer:
C. Enzymes are reusable.
Explanation:
Which TWO types of rock are formed as particles get pushed closer together?
A. Metamorphic
B. Extrusive igneous
C. Intrusive igneous
D. Sedimentary
Answer:
Sedimentary rock? Because when sediments get pressed together
And then turn into a rock
Which of these is NOT a disease caused by bacteria?
A. Stayhyococcus aureus
B. streptococcus pneumonia
C. Hemophilus Influenzae
D. Penicillium erythromycin
Answer:
A
Explanation:
Herman's company has adopted a paperless policy. Employees no longer print letters or documents and instead do everything on the computer. Office paper use has dropped by 40% in the last six months. If everyone adopted the same policies, what impact would that have on the environment?
Answer:
There would be a decrease in deforestation, because fewer trees would be cut down for paper.
Explanation:
If everyone reduce the use of papers it will lead to reduce in deforestation.
What is deforestation?Deforestation refers to the loss of forest area worldwide to other uses such as agricultural land, urbanization and mining activities. Deforestation, greatly accelerated by human activities since the 1960s, has adversely affected natural ecosystems, biodiversity and climate.
Several factors, both human and natural, cause deforestation. Natural factors include natural forest fires and diseases caused by parasites that can lead to deforestation. Nevertheless, human activities are one of the main causes of global deforestation.
Therefore, If everyone reduce the use of papers it will lead to reduce in deforestation.
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Raisins are a snack that is made from dehydrated grapes. While the sugar remains in the fruit, the water is removed, giving it its characteristic wrinkled appearance. A student is curious if she could rehydrate a raisin and get a grape again. She runs an experiment where she places a raisin in distilled water, another raisin in tap water, and a third raisin in salt water. The movement of water in and out of the raisin is called
Answer:
This structure which allows these passages is called the cell membrane. Substances outside the cell can move in and out of the membrane through a process called diffusion. When the substance in question is water, the process is referred to as osmosis. ... Water can be put back into a raisin through the process of osmosis.
The purpose that a system is designed to achieve is called the _____.
feedback
output
goal
process
Answer:
goal
hope it helps
thanks for the points
Answer:
maybe it's goal....
Explanation:
just trying
9) Which of the following statements is TRUE about photosynthesis?
Identify the Mitotic phases.
Answer:
1 prophase, 2 metaphase, 3 anaphase, and 4 telophase.
Explanation:
Answer:
1= prophase
2= metaphase
3= anaphase
4= telophase
Explanation:
(because yes) hope this helps!
What is ONE major difference in the problems associated with obtaining measurements on the sizes or densities of animal populations versus plant populations?
I think one major difference with that is that animals can move around, go distances in search for food or mate, and thus make the animal densities per geography vary greatly. Birds migrate regularly, so their population densities tend to vary with seasons. Their mobility also depends on the availability of food, so animals go away if there are no food in the area.
Plants on the other hand don't move around faster (they can migrate by reproduction: it's their seeds moving around). Thus their densities tend to be more constant per season/life cycle.
Which of the following statements is true about membranes?
A.
Mucus membranes line cavities that have an external opening in the body,
B.
Serous membranes line internal cavities that have no external opening in the body,
C.
When a membrane is attached to an organ it is called a visceral membrane,
D. All of the above.
The true statements are all of the above. Hence, option D is correct.
What do you mean by Mucous membrane?A Mucous membrane may be defined as the epithelial tissues that involve the inner lining of the internal organs that secrete mucus. It includes the respiratory system, gut, etc.
Mucous membranes line cavities that have an external opening in the body. Serous membranes line internal cavities that have no external opening in the body, while a visceral membrane is a type of membrane that is attached to an organ.
Therefore, the correct option for this question is D, i.e. all the above.
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Ribosomes are the site where
are produced.
Amino acids are coded for by triplet bases in RNA called
Answer:
Ribosomes are where PROTEINS are produced.
Amino acids are coded for by triplet bases in RNA called A CODON.
Explanation:
Answer:
proteins
codons
Explanation:
Edge