The structure of a DNA molecule is arranged in Double-helix.
On April 25, 1953, Watson and Crick published their findings in a one-page paper titled "A Structure for Deoxyribose Nucleic Acid." The paper was accompanied by a diagram of the double helix created by Crick's wife, Odile.
A double helix of two complementary nucleotide strands held together by hydrogen bonds between G-C and A-T base pairs makes up each DNA molecule. Duplication of the hereditary data happens by the utilization of one DNA strand as a layout for the development of an integral strand. The instructions for every protein that an organism will ever produce are contained in the genetic information that is stored in its DNA. DNA is housed in the cell nucleus of eukaryotes.
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Why is lighter skin an
advantage in places
with less sunlight
Answer: Yet when a certain amount of UV rays penetrates the skin, it helps the human body use vitamin D to absorb the calcium necessary for strong bones. This delicate balancing act explains why the peoples that migrated to colder geographic zones with less sunlight developed lighter skin color.
Answer:
When a certain Strongbow amount of UV rays penetrate the skin, it helps the human body use vitamin D to absorb the calcium is necessary for strong bones. This Balancing Act explains why the people that migrated to colder Geographic zones with less sunlight develop lighter skin color.
Hope this helped!
Question 9
After 60 days, 100g of a certain element has decayed to only 12.5g.
What is the half-life of this element?
A.) 20 days
B.) 30 days
с.) 8 days
D.)5 days
Can anyone please help me on this please I beg you
Answer;
option c is right answer
The following diagram shows a stage of a cell during mitosis. An oval has sister chromatids lined up at the upper and lower portions of the cell. Which of the following happens to the cell during the stage shown in the diagram? The chromosomes are replicated. The chromosomes start to condense. The centromere of each chromosome splits. The centrosomes line up in the middle of the cell.
Answer:
Anaphase
Explanation:
2.
The stomata relate to by
allowing oxygen to enter the plant
Answer:
Stomata have two main functions, namely;
They allow for gas exchange acting as an entryway for carbon dioxide (CO2) and releasing the Oxygen (O2) that we breath. The other main function is regulating water movement through transpiration.Explanation:
Plss help!! ASAP I will give u brainlist
Answer:
Sedimentary
Explanation:
Non-potable water may contain __________.
A)
disease vectors
B)
pathogens
C)
high levels of chemicals
D)
high levels of suspended solids
E)
all of the above
Answer:
E all of the above.
Explanation:
All of these things are true of non-potable water.
What is cell?? Help plss:(
Answer:
Cell is the basic unit of life
Answer:
Hey mate.....
Explanation:
This is ur answer.....
Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells have many parts, each with a different function.
A photo is attached for ur reference!
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Diffusion/Passive Transport is molecules moving from more to less until equilibrium.
A. TRUE
B. FALSE
Help me plss!! (I will give brainliest)
Answer:
g-2 phase
Explanation:
Answer:
D. Interphase
Explanation:
Image of the cell cycle. Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth). At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.
Whats goat plus goat
Answer:
Baby goat.
Explanation:
Two opposite sex goats equal one baby goat.
May I have brainliest?
Answer:
lil baby goat
Explanation:
Which molecule regulates how the organism looks and acts?
Answer:
In a cell, proteins can act as enzymes, structural features, pigments, and a host of other functions, including regulating the expression of other genes. This expression of genes leads to how an organism looks – its phenotype.
Explanation:
Gene regulation creates different types of proteins which make the structure of cell and organism looks, so the gene is responsible for looks and acts.
What is gene regulation?Gene regulation is a critical component of proper development. During development, genes are switched on and off in diverse patterns to make a brain cell appear and perform differently from a liver cell or a muscle cell, for example.
Gene control also enables cells to respond swiftly to environmental changes. Genetic differences can result from gene variants (also known as mutations) or through a natural process.
Genetic information is reorganized when a cell prepares to divide (known as genetic recombination). Different features in an organism can be introduced via genetic differences that modify gene activity or protein function.
Therefore gene is responsible for how an organism looks and act, it creates different proteins to make a cell.
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Select the correct answer. Which of the following is true for balancing equations? A. The number of products should be equal to the number of reactants. B. The properties of products should be the same as the properties of reactants. C. There must be as equal number of compounds on both sides of the equation. D. There must be as equal number of atoms of each element on both sides of the equation.
Answer:
d
Explanation:
Which type of force occurs between two objects at a distance? Applied force Contact force Non-contact force Normal force
Answer:
Non contact force
Explanation:
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According to the cladogram which of the following is the derived characteristic shared by amphibians and reptiles
1) bony skeleton
2) lungs
Answer: 2) lungs
Explanation:
What causes variations to arise in a population? *
O Change in the environment
O Random mutation in genes
O Rapid population increases
O Competition for limited resources
A plant's response to an environmental stimulus that indicates growth or movement is called?
Answer:
Tropism
Explanation:
Why do you think there are so many bones in the cranium? Why do you think we are born with separate cranial bones that later fuse together as we grow and develop?
Hi, rachellelunaa!!
I think the reason we have so many bones is because, firstly, the cranium is such a unique shape that we need multiple bones to form it. Also, another reason we are born with separate cranial bones is that when a baby is born, there is an incredible amount of pressure being administered to the baby during the process. The many unfused bones allow the child's head to be malleable, and therefore preventing damage to the skull and brain. As we grow, we no longer need these bones to be malleable and they fuse together.
I really hope this answers your question!!
The sutures are flexible, the bones can overlap during birthing, preventing the baby's head from pressing against the baby's brain and causing damage.
What are the cranial bones?Skeletal structure of the head. The cranium, which surrounds and protects the brain, is made up of cranial bones and facial bones (bones that form the eye sockets, nose, cheeks, jaw, and other parts of the face).
The two remaining cranial bones are covered by the frontal bone. The sphenoid bone and ethmoid bone are these.
Behind your eye sockets, the sphenoid bone supports the muscles of your face. At the peak of your nose, between your eye sockets, is the ethmoid bone.
Therefore, preventing damage to skull and brain, we are born with separate cranial bones.
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Question is in picture
Answer:
Your excretory system attempts to cool your skin through evaporation
Explanation:
Sweat is produced from sweat glands which is part of the excretory system. It secretes through the skin in order to decrease temperarure
Can someone help me with this. If you do nabot know then skip this. NO LINKS
Answer:
for part a it would be mechanical
for part b it would be warm
Explanation:
when you rub your hands together, it is mechanical energy and your hands become warm
hope this helps
Microorganisms that can produce ammonia from nitrogen gas
Answer:
Nitrogen-fixing bacteria
Explanation:
Victor put a match on a balance and found that its mass was 6.0 grams. Then he lit the match and put it out after a few seconds.
He put the partially burned match on the balance again. This time, its mass was 4.5 grams.
Which of the following best explains what happened as the match burned?
A.
Some of the mass was destroyed by the fire.
B.
The mass of the match combined with the mass of the fire.
C.
The matter moved to a different part of the match.
D.
Some of the matter changed from solid to gas and went into the air.
Answer: It releases oxygen and heat. The answer is C
Stored inside the match head is another chemical called “potassium chlorate”. When it gets hot, it releases a lot of extra oxygen and heat. This makes the match head burn quickly and strongly. When you put it all together the heat, the fuel, and the oxygen you get a flame. Matter does not go when something is set on fire. Matter is always the same. Burning is a chemical process. The flames are caused as a result of a fuel undergoing combustion (burning). (CC BY-SA 2.5; Einar Helland Berger for fire and Walter Siegmund for ash).
Answer:
Explanation:
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If a one strand of a DNA molecule reads ATCCGACCAGCTA, what will its complementary DNA strand look like?
A. TAGGCTGGTCGAT
B. UAGGCUGGUCGAU
C. ATCCGACCAGCTA
D. GCTTAATTGGCTG
Answer: A
Explanation:
A goes with T and G goes with C
Remember with this song:
Apples go in trees, Cars in the garage
PLZ ASAP Coniferous trees flourish because they take the opposite approach of deciduous
trees, they grow (slow/ast) and die (young/old),
slow, old
fast, old
Slow young
Fast young
Answer: They grow slow and die old
Explanation: I just took a test with the same question and it said I was correct plus it is on this website https://untamedscience.com/biology/biomes/coniferous-forest-biome/
Coniferous trees flourish because they take the opposite approach to deciduous trees, they grow slowly and die old. Thus, the correct option for this question is A.
What are the characteristics of Coniferous trees?The characteristics of Coniferous trees are as follows:
They have leaves that are very thin in the shape of needles. These trees don't have flowers but produce cones. Due to this, they are called coniferous trees.These trees grow in areas that have snowfall. Hence these trees have needle-like leaves that do not allow the snow to rest on them.The approach and properties of coniferous trees are absolutely opposite to those of deciduous trees. This is because the environment of both conditions differs greatly.
When there are not enough nutrients present in the soil, coniferous trees generally flourish because they take the opposite approach with respect to deciduous trees. Due to this, they grow slowly and die old.
Therefore, coniferous trees flourish because they take the opposite approach to deciduous trees, they grow slowly and die old. Thus, the correct option for this question is A.
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which 3 beak types will most likely be present in surviving species
Describe a situation where your immune, lymphatic and circulatory systems would all be involved.
Answer
Lupus is a disease that occurs when your body's immune system attacks your own tissues and organs (autoimmune disease). Inflammation caused by lupus can affect many different body systems — including your joints, skin, kidneys, blood cells, brain, heart and lungs.
Explanation:
Do you think we should use technology to alter/manipulate our genetic code?
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What would happen if a plant was unable to produce dermal tissue?
Answer: Dermal tissues in terrestrial plants produce a waxy cuticle that protects the leaf. ... The plant's stomata would be unable to open, and it would have a limited ability to perform photosynthesis.
Explanation: Hope this helped
Would you want to have your DNA analyzed for medical purposes? Briefly explain why you feel this way.
Is chloroplast eukaryotic or prokaryotic?
Answer:
Chloroplasts are eukaryotic, as they are present in all eukaryotic cells and all prokaryotic cells lack chloroplasts
Explanation: