How are mutations and meiosis similar?
Answer:
Mutations can occur before,during and after mitosis and meiosis if a mutation occurs in cells that will make gametes by meiosis or during meiosis itself it can be passed on to off spring and contribute to genetic variability of the population.
may be this was ur answer of ur question.
Mutations and meiosis are in that they both produce genetic variation
in organisms.
Meiosis is a type of cell division that involves the production of sex cells or in sexual reproduction. They produce unique daughter cells and in situations where there is a mutation in this process, it is usually passed to the offspring which leads to genetic variation.
Mutations are also usually passed to the daughter cells as it occurs in their
cells during reproduction which makes it similar with meiosis in the area of
genetic variation.
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FlowersWhat do the pollen grain and the egg becomes during fertilization? They form a sepal. They become honey. They form a new pistil. They become a seed.
help ASAP! Please! Ill mark brainliest
Answer:
I think this is right
Explanation:
ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide
ocean acidification evidence - growing difficulty in absorbing carbon dioxide,
large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells
Answer:
I think this is right
Explanation:
ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide
ocean acidification evidence - growing difficulty in absorbing carbon dioxide,
large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells
Explanation:
b
Enzymes work by
Help
Answer:
I think it will option C
hope it helps
what is the difference between DNA of a stomach cell and the DNA of a brain cell?
Answer:
they have different functions
Explanation:
the stomach cells breakdown food and make up a certain tissue and take nutrients from the food you eat while the brain cell makes up your neurons and receptors
Since they both have the same genetic information stored in the same sequence of nucleotides, the DNA of a stomach cell and the DNA of a brain cell is practically identical. However, there may be functional distinctions between both kinds of cells depending on how some genes are expressed.
What happens during development?Cells specialize during development and differentiate into various cell types with distinct functions. According to the requirements of the cell, specific genes are turned on or off as part of the differentiation process.
For instance, a brain cell may express genes that enable it to relay messages and make connections with other cells in the nervous system, whereas a stomach cell may express genes that allow it to produce digestive enzymes and absorb nutrients.
Therefore, the DNA of a stomach cell and the DNA of a brain cell is nearly identical since they both have the same genetic information stored in the same sequence of nucleotides.
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How can you explain the difference in number of mitochondria in these types of cells?
Answer:
Organs which need alot of energy to function properly have a greater number of mitochondria
Explanation:
Mitochondria are sites for respiratory enzymes which yield energy for the cells thus skeletal muscles which need alot of energy have more mitochondria than liver and liver due to doing more activities than skin has more mitochondria than the skin.
Answer:
Skeletal muscle cells have a very high amount of mitochondria as well as liver cells because they need high amounts of energy to carry out their functions, whereas skin cells don't need high amounts of energy to function.
The chromosome of a bacterium
Select one:
a. is wrapped around proteins.
b. is found within the nucleus.
c. occurs in multiple pairs within the cell.
d. has a circular shape.
11. Which of the following changes to the DNA triplet 3' GAC 5' will affect the protein produced? А. СТА B. GAT C. GAA D. GAG
Answer:
CTA, GAA and GAG encode different aminoacids than GAC.
Explanation:
GAC and GAT encode for Asp. GAA and GAG encode for Glu. CTA encodes for Leu.
Help me please :) biology
Answer: the answer is A
Explanation: A tropism (from Greek τρόπος, tropos, "a turning") is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus. ... Tropisms are typically associated with plants (although not necessarily restricted to them).
Answer:
A
Explanation:
Looking at the chart provided, the students need to develop a classification scheme to distinguish plant and animal cells. The presence of which of the following structures/organelles would be most useful for this purpose?
Answer:
The Cell Wall of plants are more geometrical, than animal cells. Plant cell wall are also stronger.
Plant cell is larger than animal cells
Plant cell have chloroplast while animal cells doesn't
Explanation:
Answer:
cell wall
Explanation:
Plant cells contain a cell wall while animal cells do not have a cell wall. By looking for the presence of a cell wall, students would be able to positively identify a cell as either plant or animal.
Help please
Veins have ------------ to ensure that blood under low pressure can return to the heart.
The circuit of circulation that goes from the heart to the body cells and back to the heart is called ---------------- circulation.
he oxygenated and deoxygenated blood are kept separate in the mammalian heart by the -----------.
Come up with five ethical guidelines for research. Write statements that reflect your own views of what is right and wrong. If you really love animals, an example of one guideline might be “No animals may be used in research of any kind.” However, when coming up with these guidelines, be thoughtful about what they really mean. Think of the information you read about earlier. Try to phrase your guidelines in a way that would allow research that you think would be beneficial to still be done. You may find that certain circumstances may cause you to rethink your own ethics!
Ethical Guidelines for the Use of Animals in Research
Respect for animals' dignity.
Responsibility for considering options (Replace)
The principle of proportionality: responsibility for considering and balancing suffering and benefit.
Responsibility for considering reducing the number of animals (Reduce)
explain how the geologist knows that the flow is older then the intrusion
Fossils evidence shows that ___________________were the first photosynthetic organisms on earth,about 1.2 billion years ago.
Answer:
cyanobacteria
Explanation:
Some fire extinguishers contain liquid carbon dioxide.
Suggest how carbon dioxide gas can be changed to liquid carbon dioxide without
reducing its temperature.
Answer:
:)
Explanation:
The CO2 Extinguisher Cannisters contain carbon dioxide in liquid form, and when the extinguisher is let off the liquid is released into the air neutralising the oxygen that the fire is feeding on, disabling the fires ability to spread.
i think its what you want :)
neutralising-make (something) ineffective by applying an opposite force or effect.
Plant cells and animal cells were observed under a microscope. The characteristics of two cells are listed below.
Cell P: Does not capture sunlight
Cell Q: Has cytoplasm but no chloroplast
Which statement about the two cells is correct? (5 points)
Cell Q also has a cell wall.
Cell Q also has large vacuole.
Cell P also has a large vacuole.
Cell P also has a cell membrane.
Explanation:
Cell Q also has a cell wall
What would happen if the rate of evaporation reduces
Answer:
When temperature and wind speed are constant, but humidity increases, the rate of evaporation will decrease. When wind speed and humidity stay constant, and temperature increases, then the rate of evaporation will increase because warmer air can hold more water vapor than colder air.
Answer:
if the rate of evaporation reduces water cylcle will stops and amount of water present in the world will be increase.humifity will be more.
6
points!!!!!!!!
Define graft in biology
Humans are negatively affecting the carbon cycle by
a
burning fossil fuels
b
extensive deforestation
c
excessive use of nonrenewable energy
d
over consuming meat products
e
all of these are correct
Answer:
All of these are correct
Explanation:
Answer:
e is your answer but I don't know how to explain it
What does heat transfer mean?
Structural isomers are chemical compounds that have
Answer:
Same molecular formulas but different structures. The two molecules below have the same chemical formula, but are different molecules because they differ in the location of the methyl group.
Explanation:
Structural isomers are chemical compounds that have the same number of atoms but different arrangements.
What are structural isomers and their types?The isomers known as structural isomers have the same chemical formula but have their atoms totally rearranged in a different order. These are molecules with the same type of molecular formula but various connectivities based on the order in which they are assembled.
The subgroups of structural isomers are ring chain isomers, metamers, tautomers, position isomers, and functional group isomers.
Because two isomers might have the same chemical formula but different chemical structures, they are significant. The molecule's characteristics are influenced by its structure. For example, butane and isobutane are structural isomers of each other.
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what are two limitations in diffusion experiment ??
Answer:
Once an organism is beyond a certain size, it cannot get essential molecules into and out of cells solely by diffusion. Diffusion is limited by the surface area to volume ratio of the organism.
Explanation:
once an organism is beyond a certain size, it cannot get essential molecules into and out of cells solely by diffusion. diffusion is limited by the surface area to volume ratio of the organism.
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In what cell phase(s) does chromosome production (replication) and formation (condensing) occur?
Answer:
The S phase and prophase
Explanation:
Replication: it occurs in the S phase of the cecular cycle and the condensation of the chromosomes, the phase is M.
Which cellular structure produces proteins using coded instructions from DNA?
a) nucleus
b) chloroplast
c) mitochondrion
d)ribosome
The skeletal and muscular systems of human are shown above. List three systems,
other than skeletal and muscular systems, the organism had when alive that help
it to survive. Describe how each of these three systems contributed to maintaining
homeostasis.
Answer:
The other systems I am aware of are...
Immune System: fights off disease-causing germs and other harmful substances
Respiratory System: works to move oxygen throughout the body and clean out waste gases like carbon dioxide
Cardiovascular System: delivers oxygen, nutrients, hormones, and other important substances to cells and organs in the body using blood
Nervous System: transmit signals between different parts of the body so we can move our muscles
Digestive System: breaks down food into small molecules, which are then absorbed into the body
Excretory System: removes waste from the human body
can someone help me with 6 7 8 and 9
Answer:
6. UAA GUA UUC UGA GUC UCG AUG CCG
7. UGC CCG UAG GAC ACC CCC GGA
8. UCU GAC GUG UCU UUG AAA CGG
9. GAA ACU CCU GAG CGA GUC GAG
Explanation:
A = U
T = A
C = G
G = C
A spring tide can occur
O A in any month after March.
0
B. in March, April, or May.
O
C. in late February to early June.
D. in any month of the year
D. in any month of the year.
a boys pushes on a heavy box, but it does not move. what force is resisting the boy's push?
Answer:
Friction! :)
Explanation:
Friction is resisting the push. You will learn that newtons are also working against the boys push. The simplest answer is friction.I hope this is helpful!
Answer:
The Answer is Friction
Explanation:
Friction is resisting the boy's push, more informativlly, the type of friction here is Static Friction, which is the frictional force that resists force that is applied to an object.
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please help!! biology!!!
Answer:
The correct answer would be b
Explanation: