Podcast
Questions and Answers
Which of the following is not a structural difference between DNA and RNA?
Which of the following is not a structural difference between DNA and RNA?
- DNA strands are short while RNA strands are very long. (correct)
- DNA contains thymine while RNA contains uracil.
- DNA contains deoxyribose while RNA contains ribose.
- a DNA molecule has two strands.
Which of the following is not true of transfer RNA?
Which of the following is not true of transfer RNA?
- there is a different tRNA for each kind of amino acid
- tRNA is involved in protein synthesis
- tRNA carries nucleotides to the ribosomes (correct)
- tRNA is found in the cell cytoplasm
Match the items listed below with their structure in the diagram that deals with protein synthesis in the cell.
Match the items listed below with their structure in the diagram that deals with protein synthesis in the cell.
Ribosome = tRNA Protein = Ribosome tRNA = Protein DNA gene strand = mRNA mRNA = DNA gene strand
A gene may be described as:
A gene may be described as:
Meiosis is important because it:
Meiosis is important because it:
When mitosis has ended, the number of chromosomes in each new cell is:
When mitosis has ended, the number of chromosomes in each new cell is:
Sister chromatids are attached to each other at an area called the:
Sister chromatids are attached to each other at an area called the:
Flashcards
DNA vs. RNA strands
DNA vs. RNA strands
DNA has two strands; RNA typically has one.
Thymine vs. Uracil
Thymine vs. Uracil
DNA contains thymine (T); RNA contains uracil (U).
Deoxyribose vs. Ribose
Deoxyribose vs. Ribose
DNA contains deoxyribose; RNA contains ribose.
tRNA Function
tRNA Function
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Ribosome
Ribosome
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Protein
Protein
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tRNA (transfer RNA)
tRNA (transfer RNA)
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DNA gene
DNA gene
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mRNA (messenger RNA)
mRNA (messenger RNA)
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Gene
Gene
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Importance of Meiosis
Importance of Meiosis
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Chromosome Number After Mitosis
Chromosome Number After Mitosis
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Centromere
Centromere
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Mitosis
Mitosis
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Meiosis
Meiosis
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Study Notes
- Structural differences between DNA and RNA do not include differences in strand length.
- Transfer RNA does not carry nucleotides to the ribosomes.
- Ribosomes are matched with their structure in the diagram that deals with protein synthesis in the cell, labeled as "C".
- Protein is matched with its structure in the diagram that deals with protein synthesis in the cell, labeled as "A".
- tRNA is matched with its structure in the diagram that deals with protein synthesis in the cell, labeled as "B".
- DNA gene strand is matched with its structure in the diagram that deals with protein synthesis in the cell, labeled as "E".
- mRNA is matched with its structure in the diagram that deals with protein synthesis in the cell, labeled as "D".
- A gene may be described as a sequence of nucleotides that controls the production of one type of protein.
- Meiosis prevents increases in chromosome number between generations.
- After mitosis, the number of chromosomes in each new cell is equal to the number in the parent cell.
- Sister chromatids are attached to each other at an area called the centromere.
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Description
Explore the structural differences between DNA and RNA, the roles of tRNA and ribosomes in protein synthesis, and the function of genes. Understand meiosis's role in maintaining chromosome numbers and the outcome of mitosis on chromosome count.
