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BEST REVIEW GEM Final Exam 2024 100% VERIFIED ANSWERS 2024/2025 CORRECT
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GEM Final Exam 2024 100%VERIFIED ANSWERS
2024/2025 CORRECT
Which of the following statements is TRUE:
- Trillions of human cells are present in the human body
- Trillions of bacterial cells are present in the human body
- The human genome is composed of billions of base pairs
- Thousands of genes are encoded within the human genome
- All the above statements are true
All the above statements are true
Which of the following genomes are NOT part of our microbiomes?
- Eukaryotic genomes
- Fungal genomes
- Mitochondrial genomes
- Bacterial genomes
- None of the above are found in our microbiomes
Mitochondrial genomes
Identify the WRONG statement below:
- DNA serves as a template during transcription to produce mRNA
- mRNA is a double-stranded copy of a gene used in translation
- mRNA serves as a template during translation to synthesize proteins
- Gene expression is crucial for protein production from genes
- Gene expression can be regulated by non-coding DNA
mRNA is a double-stranded copy of a gene used in translation
,Which factors influence an individual's health?
- Genetic ancestry
- Ancestor environments
- Current living environments
- Microbiomes within them
- All of the above
All of the above
What genetic mechanisms make personal genomes unique?
- Genetic recombination
- Base mutations
- Insertions and deletions
- Chromosomal rearrangements
- All of the above
All of the above
Which of the following statements is FALSE?
- Proteins vary in the lengths of their sequences
- Disease mutations are generally dominant
- Individuals vary in the number of copies of a gene they have
- Centromere locations in chromosomes are not fixed among species
- Genes vary in the number of disease mutations
Disease mutations are generally dominant
Which of the following types of mutations ALWAYS leads to a disease?
- Nonsynonymous mutations
- Mutations in non-coding DNA regions
- Insertion of a DNA segment
- Deletion of a DNA segment
- None of the above
, None of the above
Which genotypes could lead to a disease when dealing with a recessive
mutation?
- Only homozygous recessive (aa)
- Only heterozygous (Aa)
- Only hemizygous (*a)
- Genotypes aa and *a
- Genotypes Aa and aa
Genotypes aa and *a
What could cause a beneficial mutation to be eliminated from a population?
- Random genetic drift
- By turning into a maladaptation
- Migration to a new environment
- Elimination of pathogens
- All of the above
All of the above
What is the most common effect of new nonsynonymous mutations?
- They are detrimental
- They are beneficial
- They are neutral
- They are X-linked
- They are Y-linked
They are detrimental
Why do we observe more disease mutations than expected on the X
chromosome?
- The presence of only one active copy of X-linked genes
- The X chromosome has more than the expected number of genes
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