Describe the system that allows modern geneticists differentiate between dominant and recessive alleles.
What will be an ideal response?
- A letter is used to symbolize the characteristic. For example, the letter "P" can be used for flower colour.
- The dominant allele is written in upper case. Purple flower colour is dominant and is written as P.
- The recessive allele is written in lower case of the same letter. White flower colour is recessive and is written as p.
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The neurotransmitter used for muscle contraction is
a. serotonin. b. dopamine. c. GABA. d. acetylcholine. e. aspartate.
Carbon first becomes part of a living thing as a result of
A. nitrogen-fixing bacteria. B. decomposer organisms. C. photosynthesis. D. aerobic respiration.
Which of the following is known for its swarming motility?
A. Proteus mirabilis B. Escherichia coli C. Klibsiella pneumonae D. Pseudomonas aeroruginosa
The actual production of sugars during photosynthesis takes place:
a) in the chloroplast outer membrane b) within the stroma, inside the thylakoids of the chloroplast c) within the stoma, outside the thylakoids of the chloroplast d) within the mitochondria e) within the thylakoid membranes