Question

Which of the below is true about aerobic cellular respiration?

All of these

It oxidizes carbon compounds and reduces oxygen

It is endergonic

It is an anabolic process

It includes the Calvin Cycle and Glycolysis

Does the average mutation rate in humans accurately describe the pattern of mutations across the genome?

Yes. The mutation rate is the same between males and females.

No. Mutation rates vary with geographic location – they are higher in some parts of the world than in others.

Yes. All regions of the genome have the same mutation rate.

No. Some sites (hotspots) are more mutable than others.

Which of the following point mutations is least likely to change a protein’s ability to function?

one that occurs in germ cells

one that creates a new codon that codes for an amino acid of the same size as that coded for by the original codon

one that creates a new codon code for the same amino acid as the original codon

one that occurs in somatic cells

Which of the below contributes to the C-value paradox?

differences in the amount of non-coding DNA among organisms

differences in the amount of highly repetitive DNA sequences among organisms

all of these

differences in the amount of moderately repetitive DNA sequences among organisms

Which of the following does NOT have a genome?

All of these possess a genome

chloroplast

mitochondrion

nucleus

Endoplasmic reticulum

What occurs during cytokinesis in the cell cycle?

separation of genetically identical daughter cells

replication of DNA

expression of regulatory proteins and enzymes required for replication

separation of replicated chromosomes so that each daughter cell gets the same complement of chromosomes

What occurs during the M phase of the cell cycle?

separation of genetically distinct daughter cells

separation of replicated chromosomes so that each daughter cell gets the same complement of chromosomes

replication of DNA

expression of regulatory proteins and enzymes required for replication

What would happen if a defect in S phase occurred during the cell cycle?

None of these.

There could be a lack of cytoplasm.

There could be too few chromosomes.

All organelles may not be duplicated.

Answer 1

Ans.1. Option B is the last option.

Explanation:- In aerobic respiration which os a catabolic process releasing energy in form of the ATP, glucose is oxidised to the CO2 and oxygen is reduced to water. It includes glycolysis, kreb's cycle and electron transport chain.

Ans.2. Option B is the correct answer.

Explanation:- The mutation rate is not constant. It varoes from genome to genome. So species are more prone to mutation. Mutation is also largely affected by the environmental factor. So it varies greatly with geographically.

Ans.3. Option C is the correct answer.

Explanation:- The point mutation is one , in which a single nucleotide is changed. As some amino acid are coded by more than one codon. If the change in the codon result in some the codon which result in the amino acid similar to prior. So there will be no change in the protein function.

Ans.4. All the option are correct.

C -Value paradox is the value related to the genome of individual and total DNA content of the organisms.

Ans.5. Option E is the correct answer.

Endoplasmic reticulum does not has the genome.