For any given gene, what ultimately determines which dna strand serves as the template strand?

Answers

Answer 1
Answer: The answer is the base sequence of gene's promoter.

DNA is a two-stranded helix. One strand is called a template strand, the other one is called a coding strand. The template strand is copied into mRNA, and the coding strand is complementary to the template strand. RNA polymerase, an enzyme responsible for transcription, has to recognize the right strand before transcription begins. So, it recognizes one or more short sequences on the coding strand. This is the base sequence of gene's promoter. Thus, the complementary strand is the template strand.

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Orange roughy fish are a fourth-level consumer. We may see fifth- or sixth-level consumers, but not as many as at lower levels on a trophic pyramid. Why are the upper levels of a tropic pyramid limited?
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Match the following methods of movement with the appropriate protozoan. 1. cilia amoeba 2. flagellum euglena 3. pseudopodia paramecium

Answers

1. cilia-----------paramecium

Paramecium is one of the least complex unicellular creatures, which is found in all water body related ecological conditions.  

The cilia assume a key job in paramecium development.  

Paramecia are single-celled microorganisms that live in freshwater and marine conditions. They have a place with the phylum Ciliophora, the ciliated protozoa. A cilium is a short, hair-like structure that projects from a life form's cell layer. A paramecium has a large number of cilia that musically beat, giving an approach to it to move around and to clear sustenance into its oral score.


2. flagellum---------euglena

Euglena are unicellular living beings grouped into the Kingdom Protista, and the Phylum Euglenophyta. All euglena have chloroplasts and can make their very own sustenance by photosynthesis. They are not totally autotrophic however, euglena can likewise retain sustenance from their condition; euglena normally live in calm lakes or puddles.  

Euglena move by a flagellum (plural ‚ flagella), which is a long whip-like structure that demonstrations like somewhat engine. The flagellum is situated on the foremost (front) end, and whirls so as to pull the cell through the water. It is appended at an internal pocket called the store.


3. pseudopodia--------amoeba

Amoebae utilize pseudopodia (signifying "false feet") to move. This is essentially a similar way phagocytes (a sort of white platelet) immerse an attacking microorganism when we battle a disease. On account of a single adaptable cell moving, it's cytoplasm streams forward to frame a pseudopodium, at that point it levels pull out. With the end goal to eat, it will shape two pseudopodia and wrap those around to meet one another, encasing its sustenance, at that point the cytoplasm levels out once more.

Paramecia move by cilia. Euglena move by flagella. Ameba mive by pseudopods.

Select all the correct answers.In which three ways can we use biomass as a source of energy?

by extracting hydrogen from it
by converting it into liquid fuels
by making suitable bacteria act on it
by burning it directly
by mixing it with petroleum-based fuels

Answers

Answer:

The correct ways to use biomass as a source of energy are:

By converting it into liquid fuels: Biomass can be processed into liquid biofuels like biodiesel and bioethanol, which can be used as alternatives to fossil fuels.

By burning it directly: Biomass can be burned directly as a source of heat and energy. This is often done in the form of wood, agricultural residues, or dedicated energy crops.

By making suitable bacteria act on it: Biomass can be used to produce biogas through a process called anaerobic digestion, where bacteria break down organic materials to generate methane, a valuable energy source.

Explanation:

According to the Universal Law of Gravitation, every object attracts every other object in the universe. Why can’t you feel the force of attraction between you and Mars?A. There is no force between you and mars.
B. Your mass is too low.
C. Mars is a larger planet than Earth.
D. Mars is a long distance away.

Answers

The correct answer is option D. Mars is a long distance away.

According to the universal law of gravitation, the effect of the force of gravity decreases as the distance increases. The gravitation force is inversely proportional to the radius or the distance. So, the gravitational force exhibited by the Mars is not experienced by us due to the large distance.

The correct response for why you can't feel the force of attraction between you and Mars is because D. Mars is a long distance away, and thus why there is no gravitation attraction between you and Mars.

Which plant cell structure stores large amounts of chemicals—including salts, minerals, proteins, and water—for the cell and helps the cell maintain its shape?

Answers

The central vacuole is the plant cell structure that stores large amounts of chemicals - including salts, minerals, proteins, and water - for the cell and helps the cell maintain its shape. A vacuole is actually a membrane bound organelle that is present in all plant and fungal cells present on our earth. Some animal, protist and bacterial cells also have vacuole.

Which of the following is NOT a characteristic of living things?a.one or more cells
b.complex chemical activity
c.reproduction
d.nuclear reactions

Answers

Nuclear reaction is not a characteristic of a living thing

While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade? plantae chordata nonchordata

Answers

Answer:

The correct answer is chordata.

Explanation:

The Reptilia, Amphibia, Mammalia, and the Aves all come under the kingdom Animalia, and all are the part of the basal clade Chordata. This signifies that all these species during a certain point of their life exhibited a notochord. A notochord refers to a cartilaginous rod of skeleton that supports the body in all the embryonic and in some of the adult chordate animals.

Chordata.
(Animals with spinal nervous cord)
Animals cant come under plants, can they?
And as well animals cant be under a non chordata because animals have spinal cords.