Waston and crick:
Correct answer: C. DNA model
- A. Locus
- B. DNA polymerases
- C. DNA model
- D. Meselson and Stahl
Explanation
The DNA model refers to the structure of DNA, which was elucidated by James Watson and Francis Crick in 1953. This model, known as the double helix, describes DNA as a twisted ladder-like structure composed of two strands that are held together by hydrogen bonds between complementary base pairs (adenine with thymine, and guanine with cytosine).
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About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.