Biology High School

which best describes a gene? 1. the short arm of a a chromosome 2. tightly coiled strands of DNA 3. the center of a chromosome 4. a segment of chromosomal DNA​

Answers

Answer 1

Answer:

It's D. A segment of chromosomal DNA.

Explanation:

Answer 2

The functional and the physical element of genetics are called genes. They get inherited in the form of pairs from the parents of the offspring.

The genes are best described as:

Option 4. A segment of chromosomal DNA​.

The statements can be explained as:

The short arm of the chromosomes is called a P-arm found on the chromosomes either the above or the below section of the centromere.

Chromosomes are the tightly bonded thread-like configurations of DNA surrounding the histone protein.

The centromere is in the middle of the chromosome that holds the two sister chromatids of the chromosomes.

Genes are the element of the DNA that codes for proteins and determine the functions of the cells and attributes.

Therefore, the correct option is D.

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Related Questions

What 2 things must pass out of the nuclear pores?

Answers

Answer:

The two things that must pass through nuclear pores are small polar molecules, ions, and macromolecules (proteins and RNAs)

Explanation:

Answer:

small molecuels and ions

Explanation:

does anyone know about herpetology

Answers

Answer:

no i dont

Explanation:

Answer:

Herpetology in lamen terms is the study of reptiles and amphibians. I've had an interest in herpetology all my life and here in Florida, well... herpetology can get interesting.

Explanation:

What’s the answer to this??

Answers

Answer:

3

Explanation:

How many strands do DNA molecules have

Answers

Answer:

Two strands

Explanation:

So each DNA molecule is made up of two strands, and there are four nucleotides present in DNA: A, C, T, and G. And each of the nucleotides on one side of the strand pairs with a specific nucleotide on the other side of the strand, and this makes up the double helix. I hope this helps.

How do the circulatory system and immune system work together to respond to an injury?

Answers

Answer:

The number of white blood cells in the blood can increase during an immune response. These cells travel through the circulatory system and the lymphatic system to an injured or infected area of the body. White blood cells leave the blood vessels and travel into the damaged tissue, where the immune response takes place.

How are proteins and nucleic acids related?
A. DNA is the blueprint for the building of proteins.
B. Amino acids are the blueprint for the assembly of RNA.
C. There is no relationship between them.
D. Amino acids make up one part of a nucleotide.

Answers

Answer: A

Explanation:

Central Dogma. DNA is transcripted into RNA, which is Translated into polypeptides, or protiens.

at which stage does cell differentiation start?

Answers

Answer: Differentiation from visibly undifferentiated precursor cells occur during embryonic development, during metamorphosis of larval forms, and following the separation of parts in asexual reproduction. It also takes place in adult organisms during the renewal of tissues and the regeneration of missing parts.

Explanation:

Cytoplasm is liquid that keeps the cell _________.
A: moving
B: airy
C: solid

Answers

Answer:

I think the cytoplasm keeps the cell solid.

Explanation:

Cytoplasm keeps all the cellular organelles suspended. The cytoplasm helps to keep them in place. It is also the site of most metabolic activities in the cell, and it allows materials to pass easily throughout the cell.

The cytoplasm is the liquid that keeps the cell solid. The correct option is C.

What is cytoplasm?

The cytoplasm is a liquid that is filled inside the cell. Between the cell membrane and the nucleus, there is a jelly-like fluid called cytoplasm. It facilitates material exchange and storage among cell organelles.

Cytoplasm helps the cell to stay still and rigid. It places all the cell organelle into a fixed place and the transfer of ions and molecules is also done by the cytoplasm. It is made up of water, salts, and other various material.

They help in the coming in of the materials and going out of the materials. They also protect the cell from shock and other invasive, they make the cell rigid and flexible and also protect recall from each other.

Thus, the correct option is C. solid.

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4) What is the most important chemical made during the light-independent reactions? It stores the energy that came from the sun.

Answers

The Calvin Cycle

Once in the mesophyll cells, CO2 diffuses into the stroma of the chloroplast, the site of light-independent reactions of photosynthesis.

Every body have a wonderful day

Answers

Answer:

Explanation:

i will but yo have one too

Thanks for the free points have a wonderful day

PLZZ Help me, my dear friends!!! Can someone tell me what this is? The chapter's name is Active Transport (on my PPT).

Answers

Answer:

Exocytosis

Explanation:

"a process by which the contents of a cell vacuole are released to the exterior through fusion of the vacuole membrane with the cell membrane."  

You can tell because the content is exiting the cell and fusing with the cell membrane.

all of the following will take place during the first trimester except?
a. heartbeat can be detected
b. external sex organs show the sex of the baby
c. lenses of the eye appear
d. wake and sleep cycles become regular

Answers

Answer:

b

Explanation:

the correct answer is b

Anyone have the answers to this lab ‍♀️

Answers

Answer:

because theyre in our bodies and they have to be small to be in our bodies

Explanation:

Answer: I'm willing to help but, I can't see the screenshot.

Different types of life have many characteristics in common. Which of the
following is a trait NOT shared by all forms of life?
A. Made of the elements C,H,N,O,P, S.
B. Needs water.
C. Has a method for movement.
D. Contains DNA.

Answers

Answer:

the correct answer is may be

made of elements C,H,N,O,P,S

The following trait that is NOT shared by all forms of life is a method for movement, and it is made of the elements C, H, N, O, P, and S.

What are the different life forms?

There are different life forms present on the earth. They are plants, animals, fungi, bacteria, protists, and archaea. Different organisms have different characteristics and organs for the functioning of the body.

Thus, the correct options are A and C.

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Match the following vocabulary words.
phalanges

1. knee bone or kneecap

2. bones in fingers and toes

3. inside bone in the lower

part of the arm
ulna
patella

Answers

Answer:

1) knee bone or kneecap=part of arm

2) bones in finger and toes =patella

3)inside bone in the lower=ulna

A fossil that forms when the hard parts, I.e bones, wood, etc.., are turned into stone
A: index fossils
B: mold and cast
C: petrified fossils
D: trace fossils

Answers

It’s D because it is as bones so it is as a trace

Answer:

C: Petrified Fossils  or B: Mold and Cast

Explanation:

Which correctly lists three properties that are used to identify minerals?

A.luster, weight, streak
B.magnetism, size, weight
C.size, weight, luster
D.streak, luster, magnetism

Answers

Answer: D. streak, luster, magnetism!

Hope this helps!! :D

Answer:

D

Explanation:

Trust me on this.

How does hurricane rainfall affect ocean salinity and food supplies?

Answers

Answer:

Ocean currents

Explanation:

i hope this helps

Need help with this check smart people answer this fast

Answers

Answer:

her arms are puffy red and swollen

Explanation:

These are physical signs (symptoms) that show that the girl may have an allergic reaction. Hope this helps

HELP PLS PLS PLS PLS

Answers

Answer:

lizards cooperate to find food and share what they find with other lizards

What kind of clothing would you likely wear in the fall or spring season at 50° latitude?

parka, gloves, insulated pants, heavy boots

cotton shirt, light jacket, long pants

shorts, sandals and T-shirt

fleece or jacket and long pants

Answers

Answer:

the second option

Explanation:

Answer:

Fleece or jacket and long pants!

Hope this helps!

how you think reproduction differs among these four animals.
a. bird. b. human c. ants d. sea stars

Answers

Answer:

c

Explanation:

2. Which of the following is a CORRECT pairing of the RNA type and the
description?
tRNA / contains codons which determine the correct amino acid sequence for a
protein
mRNA / formed from the DNA gene sequence with the help of RNA polymerase
O rRNA / formed in the nucleus and carries amino acids to the ribosome
mRNA / contains anti-codons which are complements to tRNA codons

Answers

ANSWER

mRNA - formed from the DNA gene sequence with the help of RNA polymerase.

EXPLANATION

mRNA contain codons which are complement to

tRNA anticodons.

rRNA formed in nucleolus.

tRNA carries the amino acid.

Is RNA Is a double helix

Answers

Yes it is.
Hope I helped

What would happen to the concentrations of
Pyruvate, NADH and intermembrane H+ if the ETC
stopped working?

Answers

Answer:

Stay the Same, Increase, Decrease

Explanation:

Glycolysis produces pyruvate which is functioning normally if only the ETC (electron transport) stopped working because the ETC happens AFTER glycolysis, hence pyruvate is being produced and used at a normal rate (no change). NADH is produced in the cellular respiration stage PRIOR to the ETC so it is being created at a normal (or average) rate, however, it is not being used and split properly (meaning, not enough) in the ETC stage hence it's concentration increases. H+ decreases because it cannot be made if the prior step(s) were not complete.

What would happen to the concentrations of pyruvate, NADH and intermembrane H+ if the ETC stopped working are:

Pyruvate would stay the same and not be affected.that is it would remain the same.NADH would increaseH+ in the intermembrane would decrease.

The concentration of the Pyruvate would not be affected If ETC stopped working and so this will make NADH would increase. Due to the fact that there is no electrons been transported down the chain, so therefore, no H+ would be moved and this in turn would make the concentration of H+ in the intermembrane space to reduce.

Conclusively, we can therefore say that what would happen to the concentrations of pyruvate, NADH and intermembrane H+ if the ETC stopped working are:

Pyruvate would stay the same and not be affected.that is it would remain the same.NADH would increaseH+ in the intermembrane would decrease.

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Which of the following pieces of equipment is NOT allowed to be taken into a contest?
O Clear plastic clipboard
O Measuring tape
O knife
Towel

Answers

Answer:

i think a knife or Measuring tape

Explanation:

True or False

Osmosis is the movement of water into and out of a cell.

Answers

Answer:

True

Explanation:

True

Osmosis is a special kind of diffusion that only involves water moving through a selectively permeable membrane.

List 3 adaptations of organisms for living in a desert

Answers

Answer:

1.LONG LEGS TO KEEP AWAY FROM THE LAND BECAUSE ITS REALLY HOT

2. SHORT FUR OR FEATHERS

3. LIGHT COLORED COATS TO KEEP THE SUN FROM REFLECTING OFF OF YOU SO THAT YOU AREN'T HOT

Without this process, life would cease to exist because it is the first step in energy transfer from the sun.

Cellular metabolism
Cellular division
Oxidation
Photosynthesis

Answers

Answer: Photosynthesis.

Explanation: Photosynthesis is the process by which the producers make food by the help of photosynthesis.

This is the first step of the ecosystem, as there will be no food available to the organism if there will be no photosynthesis.

The producers use the sunlight available for the this vital process. It is the first step of the energy transfer.

what does ordered internal structure mean

Answers

Answer:

Ordered internal structure" means that the atoms in a mineral are arranged in a systematic and repeating pattern.

Explanation: they arranged and repeating pattern go see for urself its right and i need help but its ok cause i dont know what grade are u but go check im typing alot..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

 the atoms in a mineral are arranged in a systematic and repeating pattern.

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