Two chromosomes in a pair, normally one inherited from the mother and one from the father is a homologous chromosomes pair.
Homologous chromosomes are matched pairs containing the same genes in identical locations along their length. Diploid organisms inherit one copy of each homologous chromosome from each parent; all together, they are considered a full set of chromosomes. For example, the two copies of Chromosome 1 in a cell would be referred to as homologous chromosomes.
Typically, a female will have 23 homologous chromosomes whereas a male will have 22. That is because the sex chromosomes, X and Y, in males are not homologous. The pairing up of homologous chromosomes during meiosis is important to promote genetic variation.
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Diffusion/Passive Transport is molecules moving from more to less until equilibrium.
A. TRUE
B. FALSE
Is chloroplast eukaryotic or prokaryotic?
Answer:
Chloroplasts are eukaryotic, as they are present in all eukaryotic cells and all prokaryotic cells lack chloroplasts
Explanation:
A plant's response to an environmental stimulus that indicates growth or movement is called?
Answer:
Tropism
Explanation:
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Answer:
Sedimentary
Explanation:
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:
Microorganisms that can produce ammonia from nitrogen gas
Answer:
Nitrogen-fixing bacteria
Explanation:
How are stars described, using their physical properties
and distance
Answer: Two characteristics define brightness: luminosity and magnitude. ... The size of the star and its surface temperature determine its luminosity. Apparent magnitude of a star is its perceived brightness, factoring in size and distance, while absolute magnitude is its true brightness irrespective of its distance from earth.
Explanation:
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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.
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which 3 beak types will most likely be present in surviving species
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
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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
crossing two plants which differ in two traits such as height and color
Answer:
This is "Mendel crossed pea plants".
Explanation:
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Answer:
1. boarder collie
2. newfoundland
3. bassit hound
4. german shepard
5. dashound
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Explanation:
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:
which of the following is a path of healthy blood flow?
a. right atrium, right ventricle, lungs
b. right atrium, left atrium, lungs
c. left ventricle, left atrium, body
d. left ventricle, right ventricle, body
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:
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Answer:
Bones produce blood cells. So, if there are no bones in our body, then our body cannot make blood. So the answer is B.
Would you want to have your DNA analyzed for medical purposes? Briefly explain why you feel this way.
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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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
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.
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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:
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.
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Answer;
option c is right answer
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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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:
I took test :)
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
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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