Answer:
- Duplex RNA (dsRNA) can suppress the expression of a gene.
- miRNAs are short, single strands approximately 21 nucleotides long.
- miRNAs suppress gene expression by interfering with transcription.
- RNA interference can temporarily suppress the expression of a target gene.
Explanation:
The RNA interference (RNAi) mechanism is a naturally occurring biological process by which an organism suppresses gene expression by using sequence-specific small non-coding RNAs that are complementary to RNA (posttranscriptional silencing) or DNA (transcriptional silencing) sequences. Since its discovery, this mechanism has been exploited in molecular biology to control the expression of target genes. There are different classes of non-coding RNAs which are able to trigger RNAi gene silencing: microRNAs (miRNAs), small interfering RNAs (siRNAs), piwi-interacting RNAs (piRNAs, only present in animals), etc. During their functioning, these non-coding RNAs are loaded into the RNA-induced silencing complex (RISC) to direct them to target sequences and trigger RNAi (for example, by cleaving target mRNAs). miRNAs are short, evolutionary conserved RNAs, that associate to the RISC complex in order to trigger both transcriptional and posttranscriptional gene silencing. During their biogenesis, small non-coding RNAs are double-stranded RNA (dsRNA), but they lose a strand (the passenger strand) when associate with the RISC complex, conserving only one strand (the guide strand) that bind by complementary base pairing to target sequences (either DNA in the nucleus or RNA in the cytoplasm).
Sex Linked Inheritance
Why are women often carriers of X-linked traits but rarely affected by them?
Answer:
Because women have two X chromosomes.
Explanation:
Process in growing a plant
Answer:
the answer is plant growth
7. What is the correct order of the levels of organization in the human body from
the simplest to the most complex?
Answer:
The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.
All living and non-living things are made of one or more unique substances called elements, the smallest unit of which is the atom, (for example, the element oxygen (O) is made of O atoms, carbon (C) is made of C atoms and hydrogen (H) is made of H atoms. Atoms combine to form molecules.
All living structures are made of cells, which are made of many different molecules. Cells are the smallest independent living thing in the human body. The body is made of many different cell types, each with a particular function, (for example muscle cells contract to move something, and red blood cells carry oxygen). All human cells are made of a cell membrane (thin outer layer) that encloses a jelly-like cellular fluid containing tiny organ-like structures called organelles.
A tissue is a group of similar cells that work together to perform a specific function. There are four main tissue types in humans (muscular, epithelial, nervous and connective). An organ is an identifiable structure of the body composed of two or more tissues types (for example, the stomach contains muscular tissue made of muscle cells, which allows it to change its shape, epithelial tissue which lines both the inner and outer surface of the
stomach, nervous tissue which sends and receives signals to and from the stomach and the central nervous system, and connective tissue which binds everything together).
Organs often perform a specific physiological function (for example, the stomach helps digest food). An organ system is a group of organs that work together to perform a specific function (for example, the stomach, small and large intestines are all organs of the digestive system, that work together to digest foodstuff, move nutrients into the blood and get rid of waste). The most complex level of organization, the human organism is composed of many organ systems that work together to perform the functions of an independent individual.
hope this answer helps you.....
please mark as brainliest .... thank you!
please help i will give you brainliest!!!!!!
Explanation:
you just have to sit there and basically say why the smog did what it did to the dinos, you need to sit there and explain how it hurt there bodys minds ect... its just like smoke to us it would make us choke from breathing it in and cause the black lung stuff.
Observations are information gathered using one or more of your senses.
Please select the best answer from the choices provided
T
F
STOP SENDING ME LINKS
QUESTION 32
Which of the following is an advantage of sexual reproduction?
01.
Sexual reproduction promotes genetic variation.
2. Individual organisms are protected from harmful mutations.
3. Sexual reproduction is more energy efficient.
Sexual reproduction is faster than asexual reproduction.
How is drought a limiting
factor?
Answer:
Because it inhibits or hinders the growth and widespread of a population
Explanation:
In biology, a limiting factor is any factor e.g. biotic or abiotic, whose actions hinders or truncates the growth of a population of organisms. Limiting factors can either be density dependent or density independent.
Density dependent limiting factors are those factors that depend on the population size e.g. disease, predation etc. Density independent factors are those that do not depend on size of a population to hinder its growth e.g. natural disasters such as drought, hurricanes, flooding etc.
According to this question, DROUGHT is a limiting factor, specifically a density independent factor because it has the ability to hinder the growth of a population.
In 1906, President Theodore Roosevelt created the Grand Canyon National Game Preserve on the Kaibab Plateau in northern Arizona. Between 1907 and 1923, cattle grazing was greatly reduced, mule deer hunting was eliminated, and predators were killed. Over 800 cougars, 20 wolves (most had already been killed in the 1800s), and 7000 coyotes were trapped or shot. In response, the mule deer herd began to increase: By 1915, deer numbers were estimated at 25,000; 50,000 by 1920; and 100,000 by 1923. The removal of the livestock and predators, and the cessation of hunting in 1907 ________. decreased the carrying capacity for the Kaibab deer decreased r, allowing more births among Kaibab deer decreased K, allowing more births among Kaibab deer removed the limits on immigration, allowing more deer into the area increased the carrying capacity for the Kaibab deer
Answer: increased the carrying capacity for the Kaibab deer
Explanation: The removal of livestock means more food as grass is available for the Kaibab deer to feed on. In the same vein, the nonexistence of predators would allow for proliferated growth which in turn would increase the number of deer population on the plateau. What this means is that the Preserve is now able to carry as much deer population as it could going forward thereby increasing the carrying capacity for the Kaibab deer which was evident by the increasing figures on the years the deer numbers were estimated.
which two activities are carried out by all species of living things 1-make food and eliminate waste 2-hibernate and take in nutrients 3-grow and reproduce 4-migrate and seek shelter
A team of students encountered an unorganism in the field conducting a biodiversity study some students think the organism is a plant or other things organism which question should the students investigate to classify the organism correctly
Answer:
Does the organism perform photosynthesis?
Is your answer
Explanation:
pls help and pls include the explanation
Answer: the answer is choice b
Explanation: based on knowledge about food chains, this choice makes the most sense
Hope this helps, and please give brainliest!
1. Air movement inside an airconditioned room.
Which type of heat transfer is observed in this
scenario?
A. Conduction
B. Convection
C. Radiation
D. Induction
2. Which of the following is NOT true about
temperature?
A. It is an example of heat energy.
B. It is present in all types of matter.
C. It is measured using thermometers.
3. Using an umbrella under the heat of the sun will
lessen which type of heat transfer?
A. Radiation
B. Convection
C. Conduction
D. Evaporation
4. Which of the following explains why a baker is
able to hold the handle of the pan with her bare hands?
I The handle is made of good insulator of heat.
II. The handle has low thermal conductivity.
III. The handle has high thermal expansion
A. I and II only
B. I and III only
C. II and III only
D. I, II, and III
1. C.convection
2.A. It is an example of heat energy.
3.A. Radiation
4. B. I and III only
use the base pairing rules to write the sequence that would pair with the following sequence: Agatcct
Answer:
TCTAGGA
Explanation:
The deoxyribonucleic acid (DNA) molecule consists of two single-strands, which are composed of four different types of nucleotide bases: Adenine (A), Thymine (T), Guanine (G) and Cytosine (C). These two DNA strands run in an anti-parallel direction to each other. According to the base-pairing rules, Adenine always pairs with Thymine, while Guanine always pairs with Cytosine. In DNA, Thymine and Adenine form two hydrogen bonds between them, while Guanine and Cytosine form three hydrogen bonds between them.
Can someone please help me that’s not gonna do the link thing PLEASE
Answer: area A.
Explanation:
area A. (which i think is the blue line) looks higher then the red one so i think its A.
show proof and work and ill give brainliest
Answer:
d
Explanation:
birds eat those two animals and that can be proved by the graph
Why does DMD affect mostly boys? Describe the type of inheritance pattern that DMD follows
Answer:
Inheritance in DMD
DMD is inherited in an X-linked pattern because the gene that can carry a DMD-causing mutation is on the X chromosome. Every boy inherits an X chromosome from his mother and a Y chromosome from his father, which is what makes him male. Girls get two X chromosomes, one from each parent.
Explanation:
When the North Pole is farthest away (tilted away) from the sun it is possible for areas within the Artic circle to experience 24 hours of darkness without any sunlight.
A. True
B. False
Answer:
I think true
Explanation:
mark me brainliest
What effects do wind patterns have on climate?
They move warm water toward the east.
They change the amount of precipitation in a region.
They carry warm or cooled water very long distances.
They cool Pacific waters and increase hurricane activity in the western Atlantic.
Answer:
b
Explanation:
edge
Winds can model the climatic patterns by moving air at different temperatures and with varying humidity levels. The correct option is B. They change the amount of precipitation in a region.
What is the influence of winds on climate?The term convective cell refers to air getting warm, expanding, and ascending. As it gets to higher altitudes, it gets colder and thicker, and hence descends again.
Unequal warming of the atmosphere results in convective atmospheric circulation cells: Hardley cell, Ferrel cell, and Polar cell.
In each hemisphere,
Warm air ascends at the equator and approximately at 60º latitude. Cold air descends at approximately 30º latitude and at the poles.These air masses circulation generates superficial winds that blow toward the equator between 0º-30º latitude and toward the poles between 30º-60º latitude.
As winds move, they carry air at different temperatures and moisture from one place to another, producing different precipitation patterns. This affects the climatic conditions in different geographical zones.
Winds movement, interaction, and encounters model the climatic patterns at a global level.
The correct option is B. They change the amount of precipitation in a region.
You will learn more about winds and clime at
https://brainly.com/question/26198570
https://brainly.com/question/867719
https://brainly.com/question/868245
PLEASE HELP I WILL GOVE BRAINLIEST!! What do mutations cause?
The development of machines to do simple and not so simple tasks, such as robotics and computers, has had many influences on society. Some of these have been positive and some of them negative. Which statement describes a negative aspect of mechanical technological advances?
A) fewer available jobs
B) lower prices for goods
C) less waste in production
D) lower cost of manufacturing
Answer:
a
Explanation:
this is a negative aspect of mechanical technology advances for humans.
Use the diagram below to answer the question that follows.
Chimpanzee Diet in November
Food
% Diet
Fruit
62.0%
Insects
16.0%
Leaves
16.0%
Miscellaneous
6.0%
The statement “A chimpanzee’s diet in November consists of 16% insects” is an example of a(n)
a.
qualitative observation
c.
inference
b.
quantitative observation
d.
prediction
Please select the best answer from the choices provided
A
B
C
D
STOP SENDING ME LINKS
Answer:
b. quantitative observation
if its wrong sorry.
hope this helps you ☺️☺️
Helpp me answer this question make sure it’s right A,B,C,D
Answer:
A salmon eating shrimp i think
Answer: the answer is A
Explanation: well if we take a look at the question and think about what it is talking about we can see that answer b has absolutely nothing to do with the question that is being asked, answer c is literally the exact same as B just a different creature and body of water, d is just wrong
Why is it important to understand how different species relate to one another?
Answer:
to understand their relationship and how they will behaive
Explanation:
What is used to make the measles vaccine?
Energy from the wind is used to turn windmills. These windmills then spin a generator to produce electricity. Which statement would NOT support the claim that wind energy is considered a clean, renewable resource.
a. Wind energy is produced naturally.
b. Wind energy is used without giving off greenhouse gases.
c. There is an abundant supply of wind energy available for use.
d.There are only certain places that are suitable for collecting wind energy.
Answer: d
Explanation:
I think it is d
4. What is the difference between structural and molecular evidence? Which do you think will be
more useful in determining which plant is more closely related to Botana curus?
Awarding 36 pints
Organisms that cannot make their own food and rely on their environment for food are called __________.
Select one:
decomposers
producers
parasites
consumers
Answer:
Consumers
Explanation:
They consume things
How is citric acid produced?
Explanation:
Mainly by submerged fermentation using Aspergillus niger or Candida sp from different sources of carbohydrates, such as molasses and starch based.
Which two systems are involved with sending urine out of the body?
O Nervous and endocrine
Systems
Go
Endocrine and excretory systems
O Excretory and muscular systems
O Muscular and digestive systems
Answer:
Here's what each organ does:
Kidneys: These organs work constantly. ...
Ureters: These two thin tubes inside your pelvis carry urine from your kidneys to your bladder.
Bladder: Your bladder holds urine until you're ready to empty it (pee). ...
Urethra: This tube carries urine from your bladder out of your body.
Explanation:
There
What works best in combating a virus?
Answer:
wear a mask and buy clorox wipes or bleach spray
Explanation: