1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Angelina_Jolie [31]
3 years ago
8

Indicate which of the following statements is FALSE.a. Covalent bonds connect nucleotides in a strand; noncovalent interactions

hold strands into a double-stranded structure.b. Uracil is similar to thymine except that uracil lacks a methyl group on the carbon at position 5 on the carbon-nitrogen ring.c. Frederick Griffith demonstrated that a transforming chemical from dead bacteria could change the genetic information of living bacteria.d. Avery, MacLeod, and McCarty showed that DNA is the genetic information of cells and that RNA is the genetic information of viruses.e. The pyrimidine bases in nucleic acids are cytosine, thymine, and uracil.
Chemistry
1 answer:
LenaWriter [7]3 years ago
8 0

Answer:

The false statement is d Avery,Macleod and McCarty showed that DNA is the genetic information of cells and RNA is the genetic information in the viruses .

Explanation:

Avery,Macleod and MacCarty showed that DNA is the genetic material of the cell.

     On the other hand Fraenkel, Conrat and Sanger carried out their experiment on tobacco mosaic virus to prove that RNA act as genetic material in some viruses.

You might be interested in
Which has a greater speed,a heron that travels 600m in 60 seconds or a duck that travels 60m in 5 seconds? explain
Semmy [17]
In order to find out the answer to this problem, you need to know how to find the unit rate. A unit rate a rate that has a denominator of 1. You find the unit rate because the problem is asking you to find the faster speed, but the ratios are different.
So 600m in 60 sec you divide both by 60. It comes out as 10m in 1 sec for the heron.
60m in 5 sec is 12m in 1 sec for the duck.
Compare the heron to duck. The heron travels faster.
Give 5 stars if it helped!! :)

6 0
3 years ago
How many moles are in 55.0 g calcium nitrate?
Alex17521 [72]

Answer: 0.335 mols Ca(NO3)2

Explanation: To go from grams to mols you divide grams by the molar mass of the substance so, 55/164.088 = 0.335

5 0
3 years ago
Why are protons in an atom so important? Question 5 options: A. Protons determine the atoms' identity (type of element) and wher
Gennadij [26K]

Your answer is A my friend as the atomic number of an atom is determined by the number of protons

4 0
3 years ago
Read 2 more answers
Starting with lead (ii) carbonate describe how a solid sample of lead (ii) sulphate can be prepared
tatuchka [14]

The preparation of lead (ii) sulphate from lead (ii) carbonate occurs in two steps:

  1. insoluble lead carbonate is converted to soluble lead (ii) nitrate
  2. soluble lead (ii) nitrate is reacted with sulphuric acid to produce lead (ii) sulphate.

<h3>How can a  solid sample of lead (ii) sulphate be prepared from lead (ii) carbonate?</h3>

Lead (ii) carbonate and  lead (ii) sulphate are both insoluble salts of lead.

In order to prepare lead (ii) sulphate, a two step process is performed.

In the first step, Lead (ii) carbonate is reacted with dilute trioxonitrate (v) acid to produce lead (ii) nitrate.

  • PbCO₃ + 2HNO₃ → Pb(NO₃)₂ + CO₂ + H₂O

In the second step, dilute sulfuric acid is reacted with the lead (ii) nitrate to produce insoluble lead (ii) sulphate which is filtered and dried.

  • Pb(NO₃)₂ + H₂SO₄  →  PbSO₄ + 2HNO₃

In conclusion, lead (ii) sulphate is prepared in two steps.

Learn  more about lead (ii) sulphate at: brainly.com/question/188055

#SPJ1

4 0
2 years ago
Read the quote: "No tears in the writer, no tears in the reader." Which best explains the meaning of this quote?​
liubo4ka [24]

Answer:

From personal experience

Explanation:

If is not felt by the writer, the reader will not feel it either!

8 0
3 years ago
Other questions:
  • What is the difference between a solute and a solvent?
    5·1 answer
  • The average human body contains 5.00 L of blood with a Fe2+ concentration of 1.10×10−5 M . If a person ingests 9.00 mL of 21.0 m
    11·1 answer
  • H2O is a single atom of water
    14·1 answer
  • What is the mass of strontiums isotopes
    6·1 answer
  • Which of the following processes involves only physical change? A. decay B. sublimation C. digestion D. combustion
    5·2 answers
  • What is the product of ( 2.324 cm x 1.11 cm) expressed to the correct number of significant figures?
    10·1 answer
  • At a given temperature, Kc=1.3x10-2 for reaction 1. What is the value of Kc for reaction 2? Reaction 1: begin mathsize 12px styl
    8·1 answer
  • Calculate the amount of mole of gas which occupies 250cm at S.T.P ​
    15·1 answer
  • Calculate the number of grams of ethanol nevessary to prepare 268g of a 9.76m solution of ethanol in water
    6·1 answer
  • A welding torch produces a flame by burning acetylene fuel in the presence of oxygen. The energy released from the acetylene fue
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!