Why would you use a model of DNA rather than the DNA itself to understand its structure
2 answers:
Answer:
Each strand has a 5' end and a 3' end. Solving the structure of DNA was one of the great scientific achievements of the century. Knowing the structure of DNA unlocked the door to understanding many aspects of DNA's function, such as how it is copied and how the information it carries can be used to produce proteins.
Explanation:
DNA (deoxyribonucleic acid) Nucleic acid that transmits genetic information from parent to offspring and codes for the production of proteins
Nucleotide Building block of nucleic acids
Double helix Structure of two strands, intertwining around an axis like a twisted ladder
DNA replication Process during which a double-stranded DNA molecule is copied to produce two identical DNA molecules
Base pairing Principle in which the nitrogenous bases of the DNA molecules bond with one another
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<h2>The correct answer is explained below:</h2>
Explanation:
- According to the question, free ear lobes are dominant over attached ear lobes.
- Let the allele for free ear lobes be represented by F.
- Let the allele for attached ear lobes be represented by f.
- The genotype of the homozygous recessive woman (mother) having attached ear lobes is : ff.
- The gamete produced by the woman is: f.
- The genotype of the heterozygous man (father) with free earlobes is: Ff.
- The gametes produced by the man are: F and f.
- Mating the man with the woman we get the following offspring,
F f
f Ff ff
Phenotype Free ear lobe Attached ear lobe
- The genotype and the phenotype of the probable children obtained is represented in the Punnett square above.
- The probability that the parents would produce children with attached ear lobes is =
.