Q. What is the probability of obtaining a homozygous recessive offspring from a cross between two heterozygous parents? (2022)
-
A.
0%
-
B.
25%
-
C.
50%
-
D.
75%
Solution
The probability of obtaining a homozygous recessive offspring (aa) from a cross between two heterozygous parents (Aa x Aa) is 25%.
Correct Answer:
B
— 25%
Learn More →
Q. What is the probability of rolling a sum of 7 with two dice?
-
A.
1/6
-
B.
1/12
-
C.
1/36
-
D.
5/36
Solution
Possible combinations for sum of 7 = (1,6), (2,5), (3,4), (4,3), (5,2), (6,1) = 6. Total outcomes = 36. Probability = 6/36 = 1/6.
Correct Answer:
D
— 5/36
Learn More →
Q. What is the process by which DNA is copied to produce an identical molecule? (2020)
-
A.
Transcription
-
B.
Translation
-
C.
Replication
-
D.
Recombination
Solution
Replication is the process by which DNA is copied to produce an identical molecule, ensuring genetic continuity.
Correct Answer:
C
— Replication
Learn More →
Q. What is the process by which DNA is copied to produce two identical DNA molecules? (2021)
-
A.
Transcription
-
B.
Translation
-
C.
Replication
-
D.
Recombination
Solution
Replication is the process by which DNA is copied to produce two identical DNA molecules.
Correct Answer:
C
— Replication
Learn More →
Q. What is the process by which DNA is copied? (2021)
-
A.
Transcription
-
B.
Translation
-
C.
Replication
-
D.
Recombination
Solution
Replication is the process by which DNA is copied to produce two identical DNA molecules.
Correct Answer:
C
— Replication
Learn More →
Q. What is the process by which energy is transferred from one trophic level to another? (2020)
-
A.
Photosynthesis
-
B.
Respiration
-
C.
Food chain
-
D.
Decomposition
Solution
The food chain illustrates how energy is transferred from one trophic level to another in an ecosystem.
Correct Answer:
C
— Food chain
Learn More →
Q. What is the process by which nutrients are recycled in an ecosystem? (2020)
-
A.
Photosynthesis
-
B.
Decomposition
-
C.
Respiration
-
D.
Transpiration
Solution
Decomposition is the process by which nutrients are recycled in an ecosystem, breaking down dead organic matter.
Correct Answer:
B
— Decomposition
Learn More →
Q. What is the process called when a gas turns into a liquid? (2022)
-
A.
Sublimation
-
B.
Condensation
-
C.
Evaporation
-
D.
Freezing
Solution
Condensation is the process where a gas turns into a liquid.
Correct Answer:
B
— Condensation
Learn More →
Q. What is the process called when a nucleus emits an alpha particle? (2019)
-
A.
Beta decay
-
B.
Gamma decay
-
C.
Alpha decay
-
D.
Fission
Solution
The emission of an alpha particle from a nucleus is known as alpha decay.
Correct Answer:
C
— Alpha decay
Learn More →
Q. What is the process called when heat is transferred through a fluid? (2019)
-
A.
Conduction
-
B.
Convection
-
C.
Radiation
-
D.
Insulation
Solution
Convection is the process of heat transfer through a fluid (liquid or gas) due to the movement of the fluid itself.
Correct Answer:
B
— Convection
Learn More →
Q. What is the process of a solid turning directly into a gas called? (2021)
-
A.
Condensation
-
B.
Sublimation
-
C.
Evaporation
-
D.
Deposition
Solution
The process of a solid turning directly into a gas is called sublimation.
Correct Answer:
B
— Sublimation
Learn More →
Q. What is the process of converting a neutron into a proton called? (2020)
-
A.
Beta decay
-
B.
Alpha decay
-
C.
Gamma decay
-
D.
Fission
Solution
Beta decay is the process in which a neutron is converted into a proton, emitting an electron and an antineutrino.
Correct Answer:
A
— Beta decay
Learn More →
Q. What is the process of forming a polymer from monomers called?
-
A.
Polymerization
-
B.
Condensation
-
C.
Sublimation
-
D.
Depolymerization
Solution
The process of forming a polymer from monomers is called polymerization.
Correct Answer:
A
— Polymerization
Learn More →
Q. What is the process of fusion of male and female gametes called? (2019)
-
A.
Pollination
-
B.
Fertilization
-
C.
Germination
-
D.
Transpiration
Solution
The process of fusion of male and female gametes is called fertilization.
Correct Answer:
B
— Fertilization
Learn More →
Q. What is the process of heat transfer through a fluid due to density differences called? (2023)
-
A.
Conduction
-
B.
Convection
-
C.
Radiation
-
D.
Insulation
Solution
The process of heat transfer through a fluid due to density differences is called convection.
Correct Answer:
B
— Convection
Learn More →
Q. What is the process of heat transfer through direct contact called? (2022)
-
A.
Convection
-
B.
Conduction
-
C.
Radiation
-
D.
Insulation
Solution
The process of heat transfer through direct contact is called conduction.
Correct Answer:
B
— Conduction
Learn More →
Q. What is the process of heat transfer through fluid motion called? (2022)
-
A.
Conduction
-
B.
Convection
-
C.
Radiation
-
D.
Insulation
Solution
The process of heat transfer through fluid motion is called convection.
Correct Answer:
B
— Convection
Learn More →
Q. What is the process of heat transfer through the movement of fluids called? (2022)
-
A.
Conduction
-
B.
Convection
-
C.
Radiation
-
D.
Insulation
Solution
The process of heat transfer through the movement of fluids is called convection.
Correct Answer:
B
— Convection
Learn More →
Q. What is the product formed when 1-bromopropane reacts with sodium hydroxide in ethanol? (2021)
-
A.
Propene
-
B.
1-Propanol
-
C.
2-Propanol
-
D.
Bromopropane
Solution
1-bromopropane reacts with sodium hydroxide in ethanol to form 1-propanol through a nucleophilic substitution reaction.
Correct Answer:
B
— 1-Propanol
Learn More →
Q. What is the product of 6 and 7? (2014)
Q. What is the product of 8 and 7? (2014)
Q. What is the product of 9 and 6? (2016)
Q. What is the product of 9 and 7? (2016)
Q. What is the product of electrolysis of water?
-
A.
Hydrogen and Oxygen
-
B.
Hydrogen and Carbon
-
C.
Oxygen and Nitrogen
-
D.
Hydrogen and Chlorine
Solution
The products of electrolysis of water are hydrogen and oxygen.
Correct Answer:
A
— Hydrogen and Oxygen
Learn More →
Q. What is the product of the complete combustion of propane?
-
A.
CO2 and H2O
-
B.
CO and H2O
-
C.
C and H2
-
D.
C2H4
Solution
The complete combustion of propane produces carbon dioxide (CO2) and water (H2O).
Correct Answer:
A
— CO2 and H2O
Learn More →
Q. What is the product of the complex numbers (1 + i) and (1 - i)? (2023) 2023
Solution
(1 + i)(1 - i) = 1^2 - i^2 = 1 - (-1) = 2.
Correct Answer:
A
— 2
Learn More →
Q. What is the product of the complex numbers 2 + 3i and 4 - i? (2021)
-
A.
11 + 10i
-
B.
14 + 5i
-
C.
5 + 10i
-
D.
10 + 5i
Solution
(2 + 3i)(4 - i) = 8 - 2i + 12i - 3i^2 = 8 + 10i + 3 = 11 + 10i.
Correct Answer:
A
— 11 + 10i
Learn More →
Q. What is the product of the oxidation of 2-Propanol? (2022)
-
A.
Acetone
-
B.
Ethanol
-
C.
Propanoic acid
-
D.
Methanol
Solution
2-Propanol oxidizes to form Acetone, which is a ketone.
Correct Answer:
A
— Acetone
Learn More →
Q. What is the product of the oxidation of a primary alcohol? (2020) 2020
-
A.
Aldehyde
-
B.
Ketone
-
C.
Carboxylic acid
-
D.
Alkene
Solution
The oxidation of a primary alcohol first produces an aldehyde, which can further oxidize to a carboxylic acid.
Correct Answer:
A
— Aldehyde
Learn More →
Q. What is the product of the oxidation of a primary alcohol? (2023) 2023
-
A.
Aldehyde
-
B.
Ketone
-
C.
Carboxylic acid
-
D.
Alkane
Solution
The oxidation of a primary alcohol results in the formation of an aldehyde.
Correct Answer:
A
— Aldehyde
Learn More →
Showing 3421 to 3450 of 5509 (184 Pages)