1.1.10 which scientist did not receive the nobel prize in the discovery of dna as a helix - shape?
a francis crick
b maurice wilkins
c james watson
d rosalind franklin
(10 x 2) (20)
1.2 give the correct biological term for each of the following descriptions.
write only the term next to the question numbers (1.2.1 - 1.2.9) in the answer book.
1.2.1 variety of living organisms on earth
1.2.2 the monomer of a protein
1.2.3 the type of dominance where straight hair and wavy hair produce a curly hair
1.2.4 the study of animal and plant distribution as a form of evidence for evolution
1.2.5 the mistake that occurs when two homologous chromosomes do not separate from each other during meiosis
1.2.6 the permanent disappearance of organisms on earth
1.2.7 a group of similar organisms that are able to interbreed to produce fertile offspring
1.2.8 carries genetic code to ribosome
1.2.9 the biotechnological process that produces genetically identical organisms
(9 x 1) (9)
1.3 indicate whether each of the descriptions in column i apply to a only, b only,
both a and b or none of the items in column ii. write a only, b only,
both a and b or none in the question numbers (1.3.1 - 1.3.3) in the answer book.
column i
column ii
1.3.1 the scientists who proposed the principle of dominance
a darwin
1.3.2 the type of reproduction that involves the fusion of gametes
a breeding at different times of the year
1.3.3 contains the sugar ribose
a eukaryotic cell
b rna
(3 x 2) (6)

Question

Accepted Answer

1. **1.1.10 Answer - Explanation Format**:
   - # Brief Explanations:
     - Rosalind Franklin did not receive the Nobel - prize for the discovery of DNA as a helix - shape. Nobel prizes are not awarded posthumously, and she died before the prize was given to Watson, Crick, and Wilkins. Francis Crick, Maurice Wilkins, and James Watson were awarded the Nobel Prize in Physiology or Medicine in 1962 for their discoveries related to the molecular structure of nucleic acids and its significance for information transfer in living material.
   - # Answer: C. Rosalind Franklin
2. **1.2 Answer - Explanation Format**:
   - 1.2.1:
     - # Brief Explanations: The variety of living organisms on Earth is called biodiversity.
     - # Answer: Biodiversity
   - 1.2.2:
     - # Brief Explanations: The monomer of a protein is an amino - acid.
     - # Answer: Amino - acid
   - 1.2.3:
     - # Brief Explanations: When straight hair and wavy hair produce a curly hair offspring, it is an example of incomplete dominance.
     - # Answer: Incomplete dominance
   - 1.2.4:
     - # Brief Explanations: The study of animal and plant distribution as a form of evidence for evolution is biogeography.
     - # Answer: Biogeography
   - 1.2.5:
     - # Brief Explanations: When homologous chromosomes do not separate from each other during meiosis, it is called non - disjunction.
     - # Answer: Non - disjunction
   - 1.2.6:
     - # Brief Explanations: The permanent disappearance of organisms on Earth is called extinction.
     - # Answer: Extinction
   - 1.2.7:
     - # Brief Explanations: Fertile offspring produced from organisms that can be interbred are a sign of the same species. Organisms that can interbreed and produce fertile offspring belong to the same biological species.
     - # Answer: Species
   - 1.2.8:
     - # Brief Explanations: Carries genetic code to ribosome is mRNA (messenger RNA). mRNA transcribes the genetic information from DNA and takes it to the ribosome for protein synthesis.
     - # Answer: mRNA (Messenger RNA)
   - 1.2.9:
     - # Brief Explanations: The biotechnological process that produces genetically identical organisms is cloning.
     - # Answer: Cloning
3. **1.3 Answer - Explanation Format**:
   - 1.3.1:
     - # Brief Explanations: The scientist who proposed the principle of dominance is Gregor Mendel. So the answer is A.
     - # Answer: A. Darwin
   - 1.3.2:
     - # Brief Explanations: The form of reproductive isolation where species breed at different times of the year is temporal isolation. So the answer is A.
     - # Answer: A. Breeding at different times of the year
   - 1.3.3:
     - # Brief Explanations: The molecule that contains the sugar ribose is RNA. So the answer is B.
     - # Answer: B. RNA

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