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Questions and Answers
At what level of life organization is reproduction carried out on the basis of matrix synthesis?
At what level of life organization is reproduction carried out on the basis of matrix synthesis?
What type of bonds hold complementary pairs of nucleotides of the double strand of DNA together?
What type of bonds hold complementary pairs of nucleotides of the double strand of DNA together?
What type of bonds connect nucleotides in the chain of a nucleic acid?
What type of bonds connect nucleotides in the chain of a nucleic acid?
What is the primary function of DNA?
What is the primary function of DNA?
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What is the primary function of t-RNA?
What is the primary function of t-RNA?
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Where is the DNA contained?
Where is the DNA contained?
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What is formed by eight molecules of histone proteins and a section of the DNA molecule that makes approximately 1.8 turns around them?
What is formed by eight molecules of histone proteins and a section of the DNA molecule that makes approximately 1.8 turns around them?
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What is the name of a chromosome with arms p and q of the same length?
What is the name of a chromosome with arms p and q of the same length?
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During which period of the mitotic cycle does DNA synthesis occur?
During which period of the mitotic cycle does DNA synthesis occur?
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What is the centromeric index?
What is the centromeric index?
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Study Notes
Reproduction and Molecular Biology
- Reproduction carried out on the basis of matrix synthesis occurs at the subcellular level.
- Nitrogenous bases of the pyrimidine class include C and T.
DNA Structure and Function
- Complementary pairs of nucleotides in DNA are held together by hydrogen bonds.
- Nucleotides in a DNA chain are connected by phosphodiester bonds.
- DNA functions include storing genetic information and transferring genetic information to the ribosome.
RNA Functions
- t-RNA functions include transporting amino acids to the ribosome.
- i-RNA functions in eukaryotes do not include storing genetic information or transferring genetic information to the ribosome.
- r-RNA functions include participating in the formation of the ribosome structure.
Cellular Structure and Organization
- DNA is contained in the nucleus, mitochondria, and chloroplasts.
- r-RNA is found in hyaloplasm and nucleus.
- A structure formed by eight molecules of histone proteins and a section of DNA is called a nucleosome.
Chromosome Structure and Classification
- A chromosome with arms p and q of the same length is called metacentric.
- A chromosome with arms p and q of slightly different lengths is called submetacentric.
- A chromosome with arms p and q of significantly different lengths is called acrocentric.
- A chromosome with one arm is called telocentric.
- The centromeric index is the ratio of the length of any arm to the length of the entire chromosome.
Mitotic Cycle
- DNA synthesis occurs during the synthetic period of the mitotic cycle.
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Description
Test your knowledge of molecular biology and genetics with this quiz, covering topics such as the level of life organization where reproduction occurs, nitrogenous bases, and DNA structure.
