Answer:
The aspect of translation that makes it so challenging for the cell is that it involves too many steps and too many molecules and organelles. mRNA associated with rRNA and tRNA. rRNA reading mRNA in a specific direction. Codon sequences indicating where to start and where to finish the synthesis. Different codons codifying for different aminoacids and tRNA recognizing those codons to add the correct amino acid to the chain. If the protein is destined to exportation, RER and Golgi complex are also involved in the process.
Explanation:
In protein synthesis, the first step is to synthesize messenger RNA, mRNA. The transcription is the coping process of the DNA section, and it happens in the nucleus. After that, the translation occurs when the formed mRNA moves to the cytoplasm through the nucleus membrane pores.
Once in the cytoplasm, it begins the translation process. mRNA meets a free ribosome, which is the primary structure for protein synthesis. Ribosomes are composed of two subunits, a big one and a small one. They also associate with different tRNA that carrying amino acids. Ribosomes might be floating freely in the cytoplasm or can be attached to the rough endoplasmic reticulum.
The ribosome reads mRNA in the 5´ to 3´ direction, and, according to the codons that are being readen, tRNA transfers the correct amino acids to build the polypeptide chain. Each tRNA has two important sites. One of them that couples with the codon of the mRNA molecule, named anticodon. The other site couples with an amino acid through the action of the aminoacyl-tRNA synthase enzyme. The whole complex, amino acid + enzyme + tRNA is named aminoacyl-tRNA. Considering that there are twenty amino acids available, there are also twenty complexes of aminoacyl-tRNA, one for each amino acid. tRNA allows amino acids to align according to the nucleotidic sequence in the mRNA molecule.
Once the new amino acid links to the growing peptidic chain, the binding between the amino acid and the tRNA molecule breaks. The tRNA is now free to join another amino acid and repeat the cycle.
The protein is synthesized from the amino terminus to the carboxy terminus, while the added amino acids to the chain are coded by a codon formed by three bases in the mRNA. mARNs also have a start and end codon that are the signals of the synthesis initiation and finish. When the ribosome reaches the end codon, protein synthesis is over.
And if the protein is destined for exportation or cell membrane, its synthesis also involved organelles like the Rough endoplasmic reticulum and the Golgi complex.
Which statement best describes the relationship between an allele and a gene?
A.) An allele is a version of a gene that can be expressed as a phenotype.
B.) An allele is the primary protein made by a gene found in a developing embryo.
C.) An allele is the part of a gene that attaches to messenger RNA molecules.
D.) An allele is a segment of a DNA molecule that controls replication of a gene.
How is G0 represented?
Which gives nourishment to embryo sac??
1) Tapetum
2) Endosperm
3) Thalamus
4)Nucellus
Answer:
4 Nucellus
Explanation:
if u think right then follow me
CAN SOMEONE HELP I DONT HAVE MUCH LONGER ON THIS TEST :( !!
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Answer: Prokaryotic
Explanation:
I hope this helped!
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Answer:
the correct answer choice is c.
Explanation:
prokaryotic cells lack both a nucleus and membrane-bound organelles.
analyze potential impacts of oceans on human populations as the result of climate change in the current century.
Answer:
The result of climate change is ocean levels increasing because of the increase in temperature. Ice is melting due to climate change and this is causing the ocean levels to rise rapidly. If the ocean levels rise above land, some villages/towns/cities could flood. As a result houses of which people live in and other structures may be destroyed. Water sources may also be contaminated, making the water unsafe for humans to consume.
half life of plutonium-239 is 24,300 years. if a nuclear bomb released 8kg of this isotope, how many years would pass before the amt is reduced to 1kg
Answer:
8:2=4kg in 24.300 years
4:2=2 kg in other 24.300 years
2:2=1kg in other 24.300 years
Total time= 72900 years
8.
Which one is a true fish
a) Cuttle fish
b) Star fish
c) Dog fish
d) Silver fish
Answer:
Star fish
Explanation:
Define the following term:
1. Pinhole camera
2. Screen
Name some bubonic plague
Bubonic plague is one of three types of plague caused by the plague bacterium (Yersinia pestis). One to seven days after exposure to the bacteria, flu-like symptoms develop. These symptoms include fever, headaches, and vomiting. Swollen and painful lymph nodes occur in the area closest to where the bacteria entered the skin. Occasionally, the swollen lymph nodes, known as "buboes".
Answer:Today, it's best known as the Black Death or the bubonic plague. Medieval people called it "the blue sickness," La pest ("the Pestilence"), and "the Great Mortality." The name bubonic comes from the medieval Latin word bubo via Italian bilbo--meaning a pustule, growth, or swelling.
Explanation:
You are breeding alligators to be reintroduced in the wild. One of the female alligators is albino. Would it be possible to get normal colored alligators from this female? Identify the genotypes of each individual and show your work in
the Punnett squares below.
Answer:
It is possible for normal coloured alligators to be produced. If the albino trait is recessive and normal is dominant, the male would need 1-2 dominant alleles to produce a normal coloured alligator. It is also possible for a normal coloured alligator to be produced if albino is dominant and normal is recessive. In this circumstance, the female must be h e t e r ozygous, but the male can be either h o m ozygous or h e t e r o zygous to produce normal coloured offspring.
First punnet square genotypes:
Female - albino
Male - albino/normal (can be either one)
Second punnet square genotypes:
Female - Normal
Male - albino/normal (can be either one)
1.
Which of these statements describes a niche?
- an environmental factor that tends to limit population size
- an increase in the Earth's average atmospheric temperature that causes corresponding changes in
climate, which may result from the greenhouse effect
- the unique living arrangement of an organism defined by its habitat, food sources, time of day it is
most active, and other factors
- none of the above
Answer: the unique living arrangement of an organism defined by its habitat, food sources, time of day it is most active and other factors
Explanation:
yes
what is the time of growth between cell divisions called
Answer:The time growth between cell divisions is called interphase.
Explanation:
Question 8
To what domain does this organism belong?
Domain Eukarya
Domain Bacteria
Domain Animalia
Domain Archeology
Domain Fungi
Answer:
Domain Eukarya
Explanation:
It sort of looks like a seahorse. And if it happens to be a seahorse, it would belong to the domian eukarya because animals are made of animal cells, and a eukaryotic cell can be either animal cell or plant cell. So it only makes sense for it to belong to domain eukarya (only if it is animal/plant).
What is the term for a number or amount of things?
A. Force
B. Quantity
C. Mass
D. Coordinate
Answer:
B:Quantity
Explanation:
hope this helps
What happens to the rate at which the reaction happens when the substrate levels increase?
Answer:
ok
Explanation:
PLEASE HELP!!!
In skeletal muscle, calcium ions leave the terminal cistern via the:
a. DHP receptor
b.Nicotinic ACh receptor
c.Ryanodine receptor
d.Calcium ATPase
e. Voltage-gated calcium channel
Answer:
c.Ryanodine receptor
Explanation:
Calcium ion release from the SR, occurs in the junctional SR/terminal cisternae through a ryanodine receptor (RyR) and is known as a calcium spark.
In dolphins, to have spots on the skin is a recessive trait. One spotted dolphin and one solid gray dolphin have a baby spotted dolphin. Go through the following steps to figure out the genotype of the parent dolphins.
1) what is the genotype of the spotted (recessive) parent?
Answer:
the spotted parent has the genotype ss
Explanation:
we will use s as the letter when describing the spotted trait.
since spotted is recessive, that parents have to have two little s to have the trait. Since the child also has that, we know that they will have the genotype ss. the child would have to get a little s from both parents, so the solid parent would have Ss, showing as solid, but still having the gene for spots.
Which agency is directly related to supervising and managing campgrounds
Us Forest Service
Bureau of land management
Us fish and wildlife service
National park service
Answer:
National Park Service
Explanation:
Why is the scientific name for a gorilla, Gorilla gorilla?
Answer:
I'm pretty sure it's Gorilla Gorilla Glueilla Rilla
Explanation:
I THINK
what is an amino acid
Which was not developed in the 1800s?
natural selection
germ theory
scientific method
cell theory
Answer:
germ theory
Explanation:
it was founded in the 19th century and founded by a man named Louis pasteur and robert koch who provided the final clue
Describe the conditions under which new species may arise.
Answer:
Explanation:i dont knowim so sorry
Answer:
New species arise through a process called speciation. In speciation, an ancestral species splits into two or more descendant species that are genetically different from one another and can no longer interbreed.
Explanation:
Which of the following is a biotic in an ecosystem?
A. Wind
B. Tree leaves
C. Small rocks
D. Light from the sun
Answer:
tree leavessssssssssssssssssss
Answer:
B. tree leaves
Explanation:
A biotic is something in an ecosystem that are components of a community such as plants and animals. Leaves can be consumed by animals which makes them biotic. Temperature and climate are NOT biotic.
Have a good day.
A weather map is shown for the southern United States. According to the map, tornadoes are most closely associated with which
weather event?
A)
blizzards
B)
cyclones
hurricanes
D)
thunderstorms
A weather map has been shown for the southern United States. According to the map, tornadoes are most closely associated with thunderstorms weather event. Thus, option D is correct.
What is the use of map in weather or garden?
Map is the distribution of flower in a garden. A diagram has been used to label an object so the parts can be recognised easily. A 3-D model has a xerox copy of the object in a three dimensional figure . An information a word so one can assume infographic . A map helps to represent the layout of the land or distribution of flower in garden.
Geographic information system (GIS) has been analyzed and visualize data for geographic positions on Earth's surface. GIS has computer - based tool that examines spatial relationships, pattern and trends. By connecting geography with data, GIS better understands data using a geographic context.
Therefore, A weather map has been shown for the southern United States. According to the map, tornadoes are most closely associated with thunderstorms weather event. Thus, option D is correct.
Learn more about map on:
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Which parts are included in a scientific name? Select all that apply.
1.family 2. species 3. genus 4. phylum
Answer:
Genus and species name
Explanation:
Scientific names are created to help decrease confusion in the naming process of animals and plants. The first part is the genus which is the origin of the organism and the second part is the species which is what identifies it as plant, animal, and other stuff.
Hope this helps :)
Yeah Why is global warming a
significant environmental
stressor
Answer:
it can destroy animal habitat like the penguin of polar bear. plus it causes droughts and severe storms to happen. also I've heard that in the warmest places you can catch diseases more easily.
What does GAC code for?
Answer:
DNA codons
Explanation:
Answer:
Aspartic acid
Explanation:
Complimentary base = CTG ( or CUG )
How was osmosis used to stop Clark's seizures?
Answer:
after Clark was treated with a hypertonic solution? increased Na concentration in matrix of brain caused water from blood to move in to the brain which increased the matrix pressure. Pressure caused the neuron firing rate to increase which increased the likelihood of seizures.
Explanation:
Which of the following strands are complementary DNA sequences?
Choose 1 answer:
It's B!!!!!!!!!!!!!!!
See above diagram, a represents
Options
water
glucose
oxygen
CO2
Answer:
water
coz the process begins in stroma