BIOLOGY MIDDLE SCHOOL

What might hershy and chase have concluded if they had found 35s instead of 35p in bacterial cells? Explain your answer

Answers

Answer 1
Answer:

Hershey and chase have concluded that DNA is not protein it was the genetic material.

Explanation:

Hershey and chase said that DNA is not protein it was the genetic material. They took a direct physical approach in finding the genetic material. They both determined that a protective coat was formed around the bacteriophage.

The internal DNA is not a protein, a genetic material. They used label to find it. The lack of 32p labeled DNA remaining in solution after bacteriohages are allowed to absorb the bacteria showed tha DNA was transferred into the bacterial cell.

The radioactive 35s in the solution shows that protein coat protects the DNA before adsorption.
Answer 2
Answer:

They would have concluded that the protein coat also entered the bacterial cell and could not deduce that protein is the genetic material.

Explanation:

In their experiment, Hershey and chase found that all the DNA coated with 32 p were missing from the solution as bacteriophage after adsorption on bacterial cell their DNA was transferred to the bacterial cell. The presence of 32 S in the solution shows that the protein coat does not enter the cell during infection.

This way they concluded that DNA is the genetic material and not the protein.

Since phage infecting bacteria inserted their DNA into it and got replicated increasing their number. Also, protein is not involved in their growing numbers.

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Do predators really kill only the old and sick prey? What evidence is there for this statement

Answers

No, but it is known that old/sick prey is much easier to catch. The evidence is that, say, there's no old and sick prey. The predator has to eat regardless, and whatever is there for it to take, it will. Think of a lion and a zebra, and the zebra is eating grass in the middle of a field. The lion is going to take that chance.
Nope predator catches the preys they find not only the old and sick one but the old and sick prey would be catch more easily as compared to the healthy and strong ones

How is gravity affected by mass and radius?

Answers

Gravity is directly proportional to the difference in mass ( thus, the greater the difference in mass of two objects, the greater the gravity).

Gravity is inversely proportional to the square of radius between two objects ( thus, the greater the distance from radius, thus, the lesser the gravity)

* Well if you mean the radius of an object, then it is directly proportional; greater the radius, greater the gravity.* 

Which carbohydrates can be used by the body as an immediate source of energy

Answers

Carbohydrates such as sugar and starch ,for example are readily broken down into glucose i.e the body's principle source of energy .The glucose can be used by the body as an immediate source of energy. Glucose can be immediately used as fuel, or even can be sent to liver and muscles and stored as glycogen .

Answer:

The answer is glucose hope it helps

Explanation:

Which of the following best describes what happens to an enzyme after it catalyzes a chemical reaction? (2 points) It is unchanged and can be used again for the same chemical reaction. Its mass decreases since part of the molecule is used up. Its shape changes, giving it different chemical and physical properties. It becomes chemically bonded to the products of the reaction.

Answers

Answer:

It is unchanged and can be used again for the same chemical reaction.

Explanation:Test taken.
I think the answer is either A or D

What makes laughing a Innate behavior?plz help ASAP

Answers

An innate behavior is one that is an instinctual behavior, so it wasn't learned. Children who are blind, deaf, and mentally handicapped have done things like laugh when tickled, but they've been proved to not to imitate actions.

So, laughing is an innate behavior because it is from our instincts.

The number of electrons that can be held in the second orbit

Answers

The number of electrons that can be held in the second orbit is 6 electrons.
6 electrons can be held in the second orbit.
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