Frederick Griffith made a scientific discovery in 1928. Which best describes
the knowledge about genetics before 1928?

Answers

Answer 1

Answer:

Frederick Griffith's discovery on the theory of genetics is credited to his experiment on mice. He subjected them to different strains of pneumonia bacteria. He concluded that there is an unidentified force that leads to the formation of different strains from what the mice were subjected to. This leads to the discovery of DNA, the carrier of traits. Scientist before did not know how the trait is passed on not until Griffith's experiment.

Explanation:


Related Questions

which layer of the atmosphere has no definite outer limit?

Answers

Answer:

the stratosphere

Explanation:

Answer:

It is the Exosphere

Explanation:

The Exosphere is debated to even be a part of the earth's atmosphere since it fades out to outer space.

Help this is due in an hour

Answers

Answer:

Chloroplasts absorb sunlight and store chemical energy

Explanation:

The chloroplasts capture sunlight and store energy

which tiny structures help the paramecium to move around

Answers

Answer:´´Their bodies are covered in cilia,¨ or short hairy protrusions¨

Explanation:

Answer:

Cilia are the ones that allow locomotion in paramecium.

Short and tiny protrusions found all over their bodies.

how to find percentage change in mass
and how to find change in mass if you're only given the mass before and mass after? ​

Answers

Answer:

Mass Difference= Final Mass- Initial Mass

To find the “Percent Change in Mass,” divide the “Mass Difference” by the “Initial Mass.”

Explanation:

Is it possible to run a farm and grow crops using fertilizers without negatively impacting the local watershed?

helpppppppp pleaaasse

Answers

After an excessive amount of time no, you will end up producing eutrophication, the substances in it boost the the growth of algae in water and decreasing the level of oxygen for aquatic life.

can someone please draw a flow chart of the Big Bang theory (not show) the scientific one (:

Answers

Answer:

Ur welcome ;) (Even tho I uploaded it from the web lol)

Explanation:

(01.02 LC)
Solve for x: -2(x + 3) = -2x - 6


0
3
O All real numbers
O No solution

Answers

Answer:

All real numbers

Explanation:

Step 1: Apply distributive property.

[tex](-2)(x) + (-2)(3) = -2x -6[/tex] [tex]-2x - 6 = -2x - 6[/tex]

Step 2: Add 2x to both sides.

[tex]-2x - 6 + 2x = -2x - 6 + 2x[/tex] [tex]-6 = -6[/tex]

Step 3: Add 6 to both sides.

[tex]-6 + 6 = -6 + 6[/tex] [tex]0 = 0[/tex]

Therefore, the answer is all real numbers.




correct choice???



bio


Answers

Answer:

solvent

Explanation:

the solvent is the substance in which the solute dissolves

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The Correct choice is :

Solvent

GIVING 100 POINTS, NO JOKE ANSWERS. PLEASE HELP!
Environmentalists claim that climate change could lead to major biological change on Earth. Which of the following statements supports the biological predictions related to climate change?

Sea levels will fall, causing migration of 50% of the world's human population.
Carbon dioxide levels and temperature changes are direct related in the studies.
Studies show that atmospheric carbon dioxide has increased over the past 150 years.
The distribution of many organisms has already shifted as a result of warming.

Answers

Answer:

Sorry, all I know is it's not C

Explanation:

Maybe A but, I am just guessing at this point because I need help on this question too.

which sentences below correctly defines respiration

A: release engery from food

B: inhaling and exhaling

C:removal of metabolic waste

D:producing an offspring to continue their species​

Answers

Answer:

Its B

Explanation:

Respiration: The act of inhaling and exhaling air in order to exchange oxygen for carbon dioxide.

Which biomolecule is structurally important to the cell membrane as it comprises the bilayer?

Answers

Phospholipids. Phospholipids, arranged in a bilayer, make up the basic fabric of the plasma membrane. They are well-suited for this role because they are amphipathic, meaning that they have both hydrophilic and hydrophobic regions. Chemical structure of a phospholipid, showing the hydrophilic head and hydrophobic tails ..

describe a mature community. how does a mature community develop?

DUE IN 30 MINUTES HELP

Answers

Answer: simply has organisms*living things) that are well adapted to live together in the same area over time.

74 POINTS!!!!
How could addressing market failure help make an economy more environmentally sustainable?

Answers

Answer:

If companies are held accountable upfront for the consequences their actions will have on the environment, their actions may be more environmentally friendly from the beginning.

Select the correct answer.
How is relative-age dating used to determine the ages
of fossils?
• A.
by observing the formation of sedimentary rocks
O B.
by using radioactive isotopes
O C.
by estimating the number of fossils in a particular region
O D.
by the formation of igneous rocks
• E.
by identifying the way the fossils were formed

Answers

Answer:

A.

Explanation: By observing the formations you will see the layers of the earth.

in which group are the alkaline earth metals found?

Answers

Group 2A of the periodic tables are earths alkaline metals

Calculate the total resistance (in Ohms) of a light bulb marked 2V and 3A. Do not add units. Leave your answer as a decimal to 2 decimal places.

Answers

The total resistance of a light bulb marked 2V and 3A is 0.67ohms

HOW TO CALCULATE RESISTANCE:

The resistance of a substance can be calculated by using the formula as follows:

R = V/I

Where;

R = resistance (in ohms)V = voltage (in volts)I = current (in amperes)

According to this question, a light bulb is marked 2V and 3A. The resistance (R) can be calculated as follows:

R = 2V ÷ 3A

R = 0.67ohms.

Therefore, the total resistance of a light bulb marked 2V and 3A is 0.67ohms.

Learn more at: https://brainly.com/question/8776047?referrer=searchResults

what is occurring during the s phase of the cell cycle?

Answers

During S phase (synthesis), DNA replication takes place. Completion of DNA synthesis is followed by G2 phase during which cell growth continues and proteins are synthesized in preparation for mitosis. S page lasts for 8 hours approximately.

What is the number of chromosomes in each Meiosis I daughter cell

Answers

Answer:23 chromosomes

Explanation:

To take human being for example,

There is 46 chromosomes in a human cell, and half is from father, and the other half is from mother. We call the chromosome is a pair. We write it 2n= 46.

In the meiosis I, the chromosomes is 1n=23.

It is 23 chromosomes

which is true of the anterior horns of the spinal cord?

Answers

Answer:

They house cell bodies of somatic motor neurons.

Explanation:

each anterior root and corresponding posterior root unite within the intervertebral foramen to become a spinal nerve

Photosynthesis takes place in the which give plants their green color

Answers

Answer:

chloroplasts

Explanation:

this is fourth grade level stuff.

Answer:chloroplasts

Explanation:chloroplasts

whitch statment best compares and contrasts lipids and carbohydrates?

Answers

Answer:

The key difference between carbohydrates and lipids is that the carbohydrates are immediate energy sources in living organisms while the lipids act as a long-term energy resource and tend to be utilized at a slower rate. Carbohydrates and lipids are important nutrients in living organisms.

Explanation:

Describe the concentration of glucose both inside and outside of the cell

Answers

Answer:

glucose inside the cell is greater than outside the cell

Explanation:

this usually because of tge life processes in living organisms such as feeding.

which statement is true about the nitrogen bases in dna and rna?

Answers

Explanation:

in DNA nitrogen bases are adenine, thymine, guanine and cytosine and in RNA nitrogen bases are same but instead of the thymine there's uracil

in DNA there are linked together adenine and thymine ; Guanine and cytosine. And in RNA adenine and uracil; Guanine and cytosine.

how fast does a body decompose to skeletal remains?

Answers

Answer:

Timeline. In a temperate climate, it usually requires three weeks to several years for a body to completely decompose into a skeleton, depending on factors such as temperature, humidity, presence of insects, and submergence in a substrate such as water.

Explanation:

What would happen to this food web if the blue striped snapper became extinct in the coral ecosystem?

Answers

It would die because of the snappers oxygen

Spelling and vocabulary words:
Organisms
Reproduction
Structure
Substances
Unicellular
Osmosis
Division
Photosynthesis
Organ
Function
Membrane
Cytoplasm
Nucleus
Chloroplast
Chlorophyll

Can y'all help me find the definitions of these words, it'd for my science exam and I'm revising. I can't search them up rn cuz I have to go to bed and I don't wanna get in trouble and I really wanna get this done.

Thxx will provide big points and brainiest for first answer​

Answers

Organism
An animal or plant a single life form

Reproduction
Reproduction is production of a baby/offspring

Structure
To construct following a plan

Substances
A physical matter where is something is made

Unicellular
A single celled organism

Osmosis
the movement of water molecules

Sorry. That’s all I can do I have to get to class Good luck!

which part of the brain consolidates short-term memory into long-term memory?

Answers

The hippocampus …………

A day on Earth is approximately 24 hours, which is the amount of time it takes for Earth to complete one
rotation around its axis. How do the two tidal bulges created by the Moon align with the number and
frequency of tides for each coastal city??

Answers

Answer:

Because the Earth rotates through two tidal “bulges” every lunar day, coastal areas experience two high and two low tides every 24 hours and 50 minutes. High tides occur 12 hours and 25 minutes apart. ... This occurs because the moon revolves around the Earth in the same direction that the Earth is rotating on its axis.

The two bulges created by the Moon align with the number and frequency of tides for each coastal city by the fact that the coastal cities experienced two consecutive high and low tides within the time interval of 24 hours and 50 minutes.

What do you mean by Tidal bulges?

Tidal bulges may be defined as a type of natural phenomenon that significantly involves the gravitational attraction between the moon and the Earth provoking the water in the oceans which is present in a fluid state and mobile in nature.

These attributes force the water to be pulled toward the moon and stimulate the production of bulges. And due to the revolution of the earth on its axis changes the location of the water.

The process of tidal bulges accomplished the consistent revolution of the moon around the earth with respect to the rotation of the earth on its axis in the same direction.

Therefore, the coastal cities experienced two consecutive high and low tides within the time interval of 24 hours and 50 minutes.

To learn more about Tidal bulges, refer to the link:

https://brainly.com/question/7139451

#SPJ5

State TWO reasons why enzymes are referred to as 'biological catalysts'.

Answers

Answer:

Like all other catalysts, enzymes are characterized by two fundamental properties. First, they increase the rate of chemical reactions without themselves being consumed or permanently altered by the reaction. Second, they increase reaction rates without altering the chemical equilibrium between reactants and products.

Your Welcome!

Which muscle looks like a saw blade along the rib cage?

Answers

Answer:  Serratus anterior muscle.

Explanation:

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