Practice Questions

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#Question id: 7292

How is plant cell cytokinesis different from animal cell cytokinesis?

#SCPH28 | Zoology

The contractile filaments found in plant cells are structures composed of carbohydrates; the cleavage furrow in animal cells is composed of contractile proteins.
Plant cells deposit vesicles containing cell wall building blocks on the metaphase plate; animal cells form a cleavage furrow.
The structural proteins of plant cells separate the two cells; in animal cells, a cell membrane separates the two daughter cells.
Plant cells divide after metaphase but before anaphase; animal cells divide after anaphase.

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#Question id: 14803

#I Life Science/ Life Sciences Group – I-V

The percentage SIMILARITIES and IDENTITIES, respectively, between the two peptide sequences given below will be ______% and _____%.

Ala-Ala-Arg-Arg-Gln-Trp-Leu-Thr-Phe-Thr-Lys-Ile-Met-Ser-Glu

Ala-Ala-Arg-Glu-Gln-Tyr-Ile-Ser-Phe-Thr-Lys-Ile-Met-Arg-Asp

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#Question id: 12583

#SCPH06 I Botany

Which of the following is caused by excessive nutrient runoff into lakes?

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#Question id: 1694

#I Life Science/ Life Sciences Group – I-V

Antigen processing for presentation by MHC class II molecules involves:

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#Question id: 14106

#SCPH05 I Biotechnology

The primary sources involved in OWL, which is a composite database includes all except

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#Question id: 1722

#SCPH01 Biochemistry

The spleen is largely involved with the response to antigens which are in the: