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- The basic structural unit of a chromosome is the nucleosome.
- Water provides protection against friction damage in living organisms.
- The first stage with a cavity appearing is the blastula.
- Both glyceraldehydes and dihydroxy acetone are intermediates in respiration and photosynthesis.
- Oxytocin causes contractions of the uterine wall during and after birth.
- Tetroses are monosaccharides found in some bacteria.
- Transcription of DNA produces mRNA.
- Triglyceride is also known as a neutral lipid.
- Carbon commonly combines with H, N & O, P & S.
- The sequence of 3 bases on tRNA complementary to mRNA is the anticodon.
- An animal’s survival depends on its ability to take organic molecules from its environment.
- No tetrads are formed during mitosis in humans.
- Non-polar organic molecules are insoluble in water.
- Interconversion of carbohydrates, proteins, and lipids is an example of coordinated catabolic and anabolic activities.
- The correct sequence of stages of prophase 1 of meiosis is leptotene, zygotene, pachytene, diplotene, diakinesis.
- Klinefelter’s syndrome, Turner’s syndrome, and Down’s syndrome are the result of meiotic non-disjunction.
- G2 phase precedes mitosis during the cell cycle.
- Most cellular secretions are glycoproteins.
- Genes will not be found in gene pairs in the sperm cells of a frog.
- rRNA constitutes 80% of the total cellular RNA.
