1. Describe at least two experiments and discuss how they helped determine that DNA and not protein was the hereditary material.

2. What is the importance of the fact that the sugar-phosphate backbone of DNA is held together by covalent bonds, and that the two strands are held together by hydrogen bonds.

3. Explain how the 3’ and the 5’ end of the DNA molecule affects DNA replication.

4. Telomerase activity can both shorten and lengthen cancerous cell lifespan. Describe how both are possible.

PLEASE HELP ME, ITS OKAY IF YOU ONLY ANSWER ONE :)

Answers

Answer 1
Umm well I was thinking

Related Questions

A cross of a red cow (RR) with a white bull (WW) produces all roan offspring (RW). This type of inheritance is known as:


sex-linked

complete dominance

codominance

incomplete dominance

Answers

Answer:

Codominance

Explanation:

Both parents carry a dominant trait, so the offspring will have a coat of main colour, and also some hairs of another colour.

If an organism has a hapoloid chromosome of 8 which of the following is the organism diploid chromosomes and why

Answers

Answer:

if I remember right, a diploid is twice the amount of a haploid because diplood are pair chromosomes. So if there is 8 haploid there will be 16 diploid.

Explanation:

To find the diploid put the n of 2n.

why are metals useful and what are some of their uses?​

Answers

Answer:

Why are metals useful:

Metals are very useful materials. Metals have many properties, such as strength, toughness, and stiffness. When heated, metals can be shaped into anything from a tiny paperclip to a huge aircraft. They are also good conductors of electricity and heat, which makes them useful for electrics and cooking pans.

What are some of their uses:

As me​tals are good conductors of electricity, they are used to making wires and parts for equipment and gadgets that function on electrical current.

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Into which of the six kingdoms should the organism be placed?
Construct a response to state your claim, use evidence, and support
with reasoning. Include the list of common characteristics of the
kingdom and why it does not belong in the other kingdoms in your
justification.*

Answers

Answer:

Protista

Explanation:

okay if you have seen all of my other questions i just want to say that this is my last one before spring break so if you know the answer you have to explain why you know what it is and again thxxxx​

Answers

Answer:

Please i feel bad for you

I think thats an ovary... ???

9. What is a larger threat to the people who live in Hawaii, lava flows or a tsunami? Explain
your choice.

Answers

I would say a tsunamis because they are harder to predict, contain, and escape from.

Which of the following does a prokaryotic cell lack?
A. nucleus
B. cell wall
C. ribosomes
D. DNA

Answers

I think the answer is D

3. In the image below, which letter represents a base pair?
otA
B
30
D

Answers

The letters are S,G, C,P,T,S,P

what is the powerhouse of the cell​

Answers

the powerhouse of a cell is mitochondria

Answer: mitochondria

Explanation: ur welcome

are are the two processors that obtain energy

Answers

Different Types of Processor
Microprocessor. The fundamental process of the system is denoted by a microprocessor incorporated in the embedded systems. ...
Microcontroller. The microcontroller is standard which is available in different size and packages. ...
Embedded Processor. ...
Digital Signal Processor.

also this one, which type of crystal is this?

Answers

Answer: Looks similar to a smoky quartz.

Of the 10 virus types on the website, which is the smallest?
A. T7
B. Coronavirus
C. Zika
D. Rabies

Answers

Answer:

b

Explanation:


Where do plant cells obtain the energy required for the dark reactions?

Answers

The area between the grana is called the stroma. This is where the dark reactions of photosynthesis occur. In the light reactions, excited electrons from chlorophyll flow through a cytochrome transport system along membranes of the thylakoid disks (thylakoid membranes).
In the stroma of the plant

How could farmers increase the yields of their crops without using
genetically modified organisms?

Answers

Answer:

The reduction of losses by pests, viruses and weeds that compete for soil nutrients, together with savings in phytosanitary products and fuel, indirectly increase the final yield when compared with conventional crops.

Explanation:

15. The human embryo and all other vertebrate embryos have gill slits. This best supports the idea that
a. Life descended from water
b. Embryos can breathe under water
c. Vertebrates are evolutionarily related
d. Humans become fish before they become human

Answers

Answer:

b. is the answer

Explanation:

19. During which phase of the cell cycle does the chromosome number increase to 4n?
A)Gap 2
B)synthesis
C)Interphase
D)mitosis

Answers

Answer:

I believe it's gap 2

Explanation:

i hope this helps if not im sorry

Gap 2 I pretty sure I hope this helps

A “year” on Earth is 365.26 days long. A “year” on Saturn lasts over 29 times longer than Earth. Which of the following best explains this difference between the two planets?

Saturn is farther from the Sun than Earth.

Saturn rotates on its axis faster than Earth.

Saturn has greater gravitational force than Earth.

Saturn revolves around the Sun faster than Earth.

Answers

Answer: Saturn is farther from the Sun than Earth.

Explanation:

Examine the weather map.

A weather map of the United notes. The following are shown on the map: major cities with high and low temperatures; high and low pressure systems; types of precipitation, fronts. The arrow is pointing to an H in a circle.

What does the symbol indicated by the arrows most likely represent?

a hurricane
low pressure
high pressure
high temperatures

Answers

Answer:

The answer would be High Pressure, H on a weather map means High Pressure, a red L on a weather map means low pressure.

The symbol represented in the weather map by H, is high pressure.

Symbols of weather map

The symbols on the weather map is used to indicate temperatures and pressures of different zones.

Symbols and their meanings on the weather mapSymbol L: This symbol is used to represent low pressure zoneSymbol H: This symbol is used to represent high pressure zone.

Thus, the symbol represented in the weather map by H, is high pressure.

Learn more about weather map here: https://brainly.com/question/26255452

Why does a mask have to cover both your nose and mouth to be effective explain using the Respiratory tract

Answers

Your nose and your mouth are both a portal of entry into your body. If you cover one and not the other it defeats the purpose because Bacteria can still enter the system. They are both part of your respiratory system.

What are some of the environmental impacts of the flooding during Hurricane Harvey? (Be sure to include statements about impacts to habitat and wildlife.)

NEED HELP ASAP! DUE TODAY! Thank You!

Answers

Answer:

Financial support

Explanation:

what scientist determine the rule that A always pairs with T and C alway pairs with G

Answers

Explanation:

These base pair relationships are often called Chargaff's rules of DNA base pairing, named after the Columbia University scientists who observed that there are equal molar concentration of A & T, as well as G & C in most DNA molecules.

Answer:

Erwin Chargaff

Explanation:

Erwin Chargaff found that in DNA, the ratios of adenine (A) to thymine (T) and guanine (G) to cytosine (C) are equal.

(dnalc.cshl.edu)

Which best describes a difference between single-celled organisms and multicellular organisms?
O A Single-celled organisms are simple, while multicellular organisms are complex,
OB. Single-celled organisms have many functions, while multicellular organisms have one function.
O c. Single-celled organisms can live without water, while mufficellular organisms cannot live without water.
D. Single-celled organisms can only be found in one specific environment, while multicellular organisms can be found anywhere on
Earth

Answers

Answer:

O A Single-celled organisms are simple, while multicellular organisms are complex,


O A Single-celled organisms are simple, while multicellular organisms are complex.

BIOLOGY HELP :/
thanks brainliest to the correct person

————————————————————————————————————————————
Cell reproduction is MOST applicable to which of the following characteristics of life?

Excretion of wastes

Respond to stimuli

Grow and develop

Need for energy

Answers

C. Grow and develop



grow and developing in organisms

Answer:

c

Explanation:

What are the three main parts of the nervous system​

Answers

Answer:

brain, spinal cord, and nerves

Explanation:

you could be meaning something else but this is what i was taught in anatomy

Answer:

They are the: Central nervous system,

Peripheral nervous system,

Automatic nervous system.

________ exercise strengthens skeletal muscle, and ________ exercise strengthens skeletal and cardiac muscle.
a. resistance, aerobic
b.aerobic, aerobic
c. aerobic, resistance
d. resistance, resistance

Answers

Answer:

D ANSWER OK

Explanation:

BECAUSE IT IS THE RIGHT ANSWER

Two identical alleles for the same gene present in a cell

Answers

Answer:

The correct answer is D.

Many plants can reproduce both sexually and asexually. For example, rose bushes reproduce asexually when cuttings planted in the ground grow roots and become a new rose bush. They can also reproduce sexually when their flowers are pollinated. What is the primary advantage of sexual reproduction in roses?

A. Roses reproduce more quickly when reproducing sexually.
B. Roses can produce more offspring in sexual reproduction.
C. Roses produced through sexual reproduction have more genetic variation.
D. Roses can reproduce sexually without the use of gametes.

Answers

a because rose most likely reproducing way more . then the experts which is some i. the webtoon. this shows an example.

During meiosis I, how could you have arranged the chromosomes in a different way? How do the differences affect the end result of meiosis??

Answers

Explanation:

Meiosis is the formation of reproductive cells, like the egg in the fallopian tube; if not fertilized by sperm, it is expelled by the menstrual cycle.

Some conditions during fertilization can be disrupted by an egg attaching to the fallopian tube instead of the uterus causing an ectopic pregnancy. Arranging chromosomes in a different way causes congenital defects like color blindness, crohn's disease down's syndrome, etc.

please help me- how does rock layer h compare to rock layer m?

Answers

Answer: Rock layer H is much newer than rock layer M. If all layers were perfectly stacked, the lower layer would be older. However, since we can see Layer H was probably formed by a crack that was filled with magma, Layer H will be newer.

Hope this helps :)

If the dry bulb temperature is 46,and the dew point is 11 degrees celsius,what would be the difference between the wet-bulb and dry-bulb temperatures?

Answers

Answer:

Dew is the condensed water that a person often sees on flowers and grass early in the morning. Dew point varies depending on the amount of water vapor present in the air, with more humid air resulting in a higher dew point than dry air. Furthermore, the higher the relative humidity, the closer the dew point to the current air temperature.

Explanation:

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