The inherited traits of an organism are controlled by?
RNA molecules
Nucleotides
DNA molecules
Enzymes
Correct answer is C
DNA now has three distinct functions—genetics, immunological, and structural—that are widely disparate and variously dependent on the sugar phosphate backbone and the bases.
220g of carbon dioxide contains ----- moles
5
6
3
4
Correct answer is A
One mole of carbon dioxide molecules has a mass of 44.01 g,
: 5 mole of carbon dioxide molecules has a mass of 220g
The mass of one Avogadro number of helium atoms is?
1.00gram
4.00gram
8.00gram
6.00gram
Correct answer is B
Avogadro's number is an absolute number: there are 6.022×10\(^23\) elementary entities in 1 mole.
helium has a molar mass of 4.0 grams per mole. So one mole of helium has a mass of 4.0 grams.
In a modern day banking system, cash transfer cannot be made where the transferer
Has no sufficient cash with the bank
Has no account with the bank
Does not reside in the bank's country
Does not possess the domestic currency
Correct answer is A
You can't transfer money when you do not not have sufficient amount of money on the account.
The mass number of a nucleus is?
Always less than its atomic number
The sum of the number of protons and neutrons present in the nucleus
Always more than the atomic weight
A fraction
Correct answer is B
mass number, is the sum of the numbers of protons and neutrons present in the nucleus of an atom.