Answer:
It happens during prophase I.
Explanation:
The homologous chromosomes come together and exchange genetic information, also known as crossing over, and the recombination of genes occur in order to produce genetically diverse offspring.
How are blood plasma extracellular fluid and lymph interrelated.
Answer:
A drop of plasma can become a drop of extracellular fluid and then a drop of lymph. Pressure in capillaries forces blood plasma out of the capillaries and into interstitial spaces. The fluid, now called interstitial fluid, becomes lymph as it flows into lymphatic vessels. These vessels return the lymph to the blood at the subclavian veins.
Click the line from the poem that is a simile. Lucy cheering, filled with hope Peter sulking like a mope Handsome Howard is the hero Pesty Peter is the zero
Answer:
Lucy cheering, filled with hope Peter sulking like a mope Handsome Howard is the hero Pesty Peter is the zero
Gel electrophoresis separates dna fragments on the basis of differences in their.
Answer:
hope this helps u
Explanation:
Gel electrophoresis is a technique used to separate DNA fragments based on their size and charge.
Who was the english scientist who proposed the theory known as ""natural selection""?.
Answer: Charles Darwin
Explanation:
Answer:
Alfred Wallace
Explanation:
Alfred Wallace, an English naturalist, collaborated on the theory of natural selection and evolution with Charles Darwin, who is widely credited with the concept.
As atp begins to build up in a cell, metabolism slows down. How does this happen?.
Answer:
ATP acts as an allosteric inhibitor to many of the enzymes involved in metabolism, thus slowing their function.
Explanation:
JM~ Hope this helps you out.....
Which factors regulate the activity of rubisco in the stroma of chloroplasts?.
do roots or stems grow first in trees
Answer:
Yeah
Explanation:
Roots grow underneath a tree
HELP?!
What is the last step in the cell cycle?
Answer:
Death I guess?
Sorry for wasting ur points, u can report this if u want
Answer:
Cytokinesis
Explanation:
Cytokinesis is the final physical cell division that occurs after telophase and is hence frequently regarded as the sixth phase of mitosis.- Cell cycle is a series of events operating towards cell division.
The cell cycle is divided into following phases:
1) G₁ phase (Cell prepares for DNA replication)
2) S phase (Replication of DNA is achieved)
3) G₂ phase (Cell prepares for division)
4) M phase (Cell actually divides and makes daughter cells)
Each of the phases is described below in details:
G₁ phase:
t is the first step of the cells to start preparing for division. It is also called growth phase as cells start preparation for division. In this phase, the cell starts accumulating all the proteins required for its division and grows in size. The duration of this phase in the cell cycle is variable.
G₁ phase also acts as the crossroads for the cells where it chooses any one of the following:
1. whether it wants to proceed to cell cycle S phase
2. enters a resting phase G₀
3. Stops replication and enters into differentiation to carry a specific role.
Once the decision is made to proceeds in the cell cycle, cell makes a transition to S phase. If the cell decides to exit the cell cycle and enters in a resting phase the cells enters into G₀ phase. In G₀ phase, cell has the capability to enter into cell cycle later as when it is required.
S phase
It is the second phase in the cell cycle where whole genome of the cell is replicated into two copies. There are proteins which do DNA replication for the cell. IT is a relatively longer phase of the cell cycle as whole genome present in the cell is replicated.
A point to remember here is that cell makes sure that the whole genome is replicated once and only for one time.
During this phase itself the c ell scans the gemone for any abbreations or damages and corrects it , if possible, by staying in S phase. Once the DNA replication is complete, the cell enters into G₂ phase.
G₂ Phase
In this second Growth phase the cell prepares itself to undergo mitosis in M phase. The cell starts to rearrange its microtubules, which play crucial role in M phase. After the preparation for entering into M phase is complete the cell enters into next phase of the cell cycle.
M phase
It is a very brief part of the cell cycle and in which the cell divides and makes two daughter cells. It is the phase where nuclear division happens (Karyokinesis). It has very strict regulation and very crisp phases.
Mitosis cycle is divided into following phases
1. All of the DNA condenses into Chromosomes and this pahse is called Prophase. Here cells nuclear membrane starts to disintergate.
2. During Metaphase using microtubules the cell aligns all its chromosomes in a common plane called metaphase plate.
3. As cell proceeds in Anaphase, cells separate sister chromatids present in the chromosomes and moves towards two opposite poles.
4. At Telophase, nuclear membrane starts to reappear and ingulf the nuclear material.
5. Finally during Cytokinesis, cell divides and forms daughter cells.
How are cell surface proteins exported out of the cell?.
Answer:
The protein is folded, then packaged for transport to the Golgi apparatus.
Explanation:
Answer:
i think it's:
endoplasmic reticulum
Explanation:
Which description is an example of codominance
Answer:
Explanation:
Codominance means that neither allele can mask the expression of the other allele. An example in humans would be the ABO blood group, where alleles A and alleles B are both expressed. So if an individual inherits allele A from their mother and allele B from their father, they have blood type AB.
Are bacterial cells prokaryotic or eukaryotic? Why or why not?.
Answer:
Prokaryotic
Explanation:
The main distinguishing feature between prokaryotic and eukaryotic cells is the appearance of a true nucleus.
Prokaryotic cells don't have nucleus.
Eukaryotic cells do have a nucleus.
Bacterial cells do not have a nucleus so they therefore are prokaryotic.
What is the density of a container with a mass of
4810 g and volume of 355 mL?
Explanation:
Density = Mass/ Volume
= 4810/355
= 13.55g/cm3
Down syndrome can occur a. as a result of translocation during mitosis. b. most frequently in the offspring of women under the age of 40. c. because of nondisjunction, which yields an extra chromosome. d. most frequently in the offspring of men under the age of 40.
Answer:
answer is c
Explanation:
down syndrome is caused by an error in cell division called nondisjunction. nondisjunction results in an an embryo
Sister chromatids present at metaphase ii might not be genetically identical to each other because.
Answer:
of crossing over events taking place during meiosis I.
What causes wind formation?
A: the constant density of air
B: the temperature differences in the hemispheres
C: the turning of circulating air vents
D: the movement of the earth on its axis
Answer:
its either "the turning of circulating air currents" or "A"
SORRY ITS BETWEEN THESE 2
Explanation:
Wind forms when the sun heats one part of the atmosphere differently than another part. This causes expansion of warmer air, making less pressure where it is warm than where it is cooler. Air always moves from high pressure to lower pressure, and this movement of air is wind.
Wind formation is the result of the temperature differences in the hemispheres. The correct option is B.
Temperature differences occur because of the unequal heating of the Earth's surface by the Sun.
Because of this, warm air rises from low-pressure regions where the surface is heated more intensively, while cooler air descends into high-pressure regions where the surface is relatively cooler.
We experience wind as a pressure gradient caused by air moving from areas of high pressure to areas of low pressure.
Option D mentioned how the Earth rotates on its axis influences wind production.
The moving air is deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere due to the Coriolis effect, which is brought on by the Earth's rotation.
Thus, the correct option is B.
For more details regarding wind, visit:
https://brainly.com/question/17103245
#SPJ6
Why is mitochondrial dna typically used to compare distantly related animals?.
Answer:
12 due to the Angel of 18
Explanation:
i have big brain
Which is larger, 7 feet or 84 inches? They are equal 7 feet 84 inches
Answer: There are 84 inches in 7 feet.
Explanation: So they r equal.
hope I helped! BRAINLIEST? ¯\_(ツ)_/¯What happens to the water resulting from cellular respiration?.
Answer:
It's secreted into the extracellular fluids. Collects in the lymph fluid, the vascular blood fluid and eventually the excess is secreted via, urine, feces, lung respiratory exhalation gases, sweat, nasal and mouth, throat mucous and saliva, tears, etc.
Request: Please mark me as the Brainliest.
A group of muscle cells stimulated by a single motor neuron is known as a.
Answer:
motor unit
The impulses that initiate muscle contraction originates in the. brain or spinal cord. A group of muscle cells stimulated by a single motor neuron is known as a. motor unit
A single motor neuron, however, can innervate many muscle fibers. The combination of an individual motor neuron and all of the muscle fibers that it innervates is called a motor unit. The number of fibers innervated by a motor unit is called its innervation ratio.
What would be the prediction if nuclei, but no cytoplasm was exchanged between the cells of two species that were not closely related
Complete question:
What would be the prediction if nuclei but no cytoplasm was exchanged between the cells of two species that were not closely related?
A. Mitochondria would cease functioning after a period of time.
B. Mitochondria would continue to function normally for several generations.
C. Accelerated gene transfer would occur between the nuclear and mitochondrial genomes.
D. Gene transfer between the nuclear and mitochondrial genomes would be suppressed.
Answer:
Mitochondria would cease functioning after a period of time. Thus, the correct option is A.
What is mitochondria?A mitochondrion is a double-membrane-bound organelle found in most eukaryotic organisms. Mitochondria use aerobic respiration to generate most of the cell's supply of adenosine triphosphate, which is subsequently used throughout the cell as a source of chemical energy.
If nuclei, but no cytoplasm was exchanged between the cells of two species that were not closely related then two isozymes would be resulted with no considerable change in nuclear material but binucleated will formed.
For more information regarding mitochondria ,visit:
https://brainly.com/question/869305
#SPJ2
5. Can the analysis of a karyotype reveal point mutations? Explain your answer.
Answer:
Careful analysis of karyotypes can also reveal more subtle structural changes, such as chromosomal deletions, duplications, translocations, or inversions.
Explanation:
What is the source of most of the salt in the oceans?.
Answer:
Seawater tastes salty because of the build up of mineral salts in the sea. Seawater has an average salt content of 3.5%. This means that in 1 liter (1000 mL) of seawater, there are 35 grams of salt (especially salt / NaCl, though not all).
Explanation:
see answer.
Biology!!
How many blood types are there?
Answer:
8
Explanation:
There are originally 8 but 4 of them are the most common known ones.
I hope it helps! Have a great day!
Muffins ^^
Answer:
8
Explanation:
There are 8 blood types.
I hope it helps! Have a great day!
bren~
What is the difference between hardwood and softwood.
What happens to animal cells kept in a Hypertonic solution?.
Arrange these statements in the correct chronological order to describe inspiration (inhalation).
1. The muscles between the ribs contract to move the ribs up and out and the diaphragm contracts and flattens
2. Air pressure in the chest cavity decreases
3. Air is drawn into the lungs
4. Lungs expand
What is cellular respiration ?
a. How to sun creates energy for liviing organisms
b. How plants make food
c. How all organisms create energy d. How animals breathe
PLEASE HELP ILL GIVE BRAINLIEST
⭒━━━━━⭑━━━━━⭒
❖[tex]\pink{\underline {\texttt{Required Answer}}} [/tex]:-
Option 2 is correct
Let's say in case of animal cells centriols already reached at the poles and the spindal fibers helps in separation of daughter chromatids.
⭒━━━━━⭑━━━━━⭒
B᭄rainlyVIP ࿐ ㋛
Answer: Im pretty sure it’s B
-sorry if wrong
Which is the correct chemical formula for cellular respiration?
a. CO2+O2->C6H12O6+Water+Energy b. C6H12O6+CO2->C6H12O6+O2
c. CO2+Water->C6H12O6+O2
d. C6H12O6+O2->CO2+Water+Energy
THE CORRECT ANSWER IS
d
[tex]C_{6} H_{12} O_{6} + 0x_{2}[/tex]→[tex]CO_{2} + H_{2} O + energy[/tex]
Explanation:
hope it help's u :)
what are two ways sharks can be distinguished?
Answer:
Sharks have small pectoral fins that are very distinct from their body. Sharks also have caudal fins on their tails, which are long and bulkier.
Shark fins typically tend to be more triangular in shape. The leading edge of the dorsal fin might have a little curve to it depending on the species, but generally, the back edge of the dorsal fin that points towards the tail is pretty squared off or flat.
