The smaller unit molecules (monomers) which combine to form proteins


1. A testable interpretation of a ample ramble of cognate phenomena that is relied upon by scientists delay a exalted rank of trust is referred to as ________. (Points : 5)
        an act
        a law
        a theory
        a dogma


2. The minuteer part-among-among molecules (monomers) which incorporate to produce proteins and polypeptides are determined ____________. (Points : 5)
        fatty actives
        monosaccharides
        amino actives
        nucleotides


3. Enzymes, some hormones, and structural molecules love keratin and collagen are examples of ______________. (Points : 5)
        nucleic actives
        carbohydrates
        lipids
        proteins


4. An speck that has gained or lost electrons is referred to as _______________. (Points : 5)
        an ion
        a molecule
        an isotope
        an element


5. Cell membranes exist of _____________. (Points : 5)
        a intricate carbohydrate webbing
        a ductile sheet of protein
        a network of microfilaments and microtubules
        a enfold layer of phospholipids


6. Which of the forthcoming bliss mechanisms requires ATP to advance materials oppolocality a plasma membrane? (Points : 5)
        undesigning diffusion
        facilitated diffusion
        osmosis
        erratic bliss


7. A cell is placed in a answer.  If the cell is observed to shrivel, the answer must be _________________ referring-to to the toward of the cell. (Points : 5)
        hypertonic
        hypotonic
        isotonic
        toxic


8. Consider the forthcoming two statements:
(1)  " Motive can neither be created nor destroyed, but it can be alterable in produce."
(2)  "If motive exchanges produce, the exexchange is never 100% prolific."
(Points : 5)
        These statements are expressions of the 1st and 2nd motive laws.
        These statements don't exercise to any cells.
        These statements are twain falsity.
        These statements exercise singly to eukaryotic (higher) cells.


9. The part-among-among of an enzyme that "fits" its substrate is determined its __________ locality. (Points : 5)
        repressor
        promoter
        erratic
        operator


10. In exalteder cells, cellular (aerobic) respiration delay product of adenosine triphosphate (ATP) is carried out in the _______________. (Points : 5)
        mitochondrion
        nucleus
        plasma membrane
        endoplasmic reticulum


11. Meiosis differs from mitosis owing _______________. (Points : 5)
        meiosis results in diploid daughter cells
        meiosis involves two cell divisions
        DNA replicates anteriorly the set-on-foot of meiosis
        meiosis occurs all aggravate the rational body


12. Leaves are unpractised owing ____________. (Points : 5)
        carotenoids retain unpractised light
        carotenoids cogitate unpractised light
        chlorophylls a and b retain unpractised light
        chlorophylls a and b cogitate unpractised light


13. Many rational traits such as eye tint and crisis are inferior by _______________. (Points : 5)
        sex-linked inheritance
        Mendel's laws
        polygenic inheritance
        fallible dominance


14. ______________ is a nucleic active disesteemed set in ribonucleic active (RNA) but not in deoxyribonucleic active (DNA). (Points : 5)
        Thymine (T)
        Guanine (G)
        Cytosine (C)
        Uracil (U)


15. Which of the forthcoming is not a likely remainder of recombinant deoxyribonucleic active (rDNA) technology? (Points : 5)
        body product of rational hormones by bacteria
        estimating the age of a shake sample
        increasing the product of hardier crops
        correcting a rational disease


16. The polymerase fastening reaction (PCR) is a mode of ________________. (Points : 5)
        body-producing proteins
        speeding up the product of mRNA proteins
        making multiple particular copies of minute amounts of DNA
        decoding the nucleotide posteriority of a gene


17. Which of the forthcoming is most lovely to principle a cell to beseem cancerous? (Points : 5)
        contradiction of a knob supressor gene
        hasty apoptosis
        cytokinesis
        contiguity inhibition


18. The recognized correlative of sex chromosomes for a rational manful is ___________. (Points : 5)
        YY
        XY
        XX
        XXY


19. An allele is ____________. (Points : 5)
        an alternate produce of a gene
        a gene set on unanalogous chromosomes (e.g., on chromosome aggregate 1 and 5)
        a gene located at two unanalogous positions on the identical chromosome
        a sex cell


20. A visual vault of metaphase chromosomes finished by largeness, figure, and banding shape is ______. (Points : 5)
        a genetic disorder
        a centrosome
        a karyotype
        amniocentesis