Can someone please help in answering these questions...
1. In addition to some species that cause harmful algal blooms, dinoflagellates are common endosymbionts of:
A. coral. B. fungi. C. other dinoflagellates. D. tertiary endosymbionts.
E. None of the above
2. Which of the following is not true of conjugation in Paramecium?
A. Micronuclei disintegrate.
B. Meiosis takes place.
C. It is a reproductive process.
D. Mitosis takes place.
E. It is a sexual process of genetic recombination.
3. Some algae demonstrate the phenomenon of alternation of generations, by which a multicellular, diploid, spore-producing organism gives rise to a multicellular, haploid, gamete-producing organism. Which of the following statements about alternation of generations is false?
A. The haploid and diploid organisms may or may not differ morphologically.
B. The haploid and diploid organisms differ genetically.
C. Only the haploid organism may also reproduce asexually.
D. Haploid gametes can produce new organisms only by fusing with other gametes.
E. Diploid sporophytes may undergo meiosis to produce haploid spores.
5. Gametes are produced by in animals; and by in plants.
A. genitals; flowers
B. meiosis; meiosis
C. mitosis; meiosis
D. meiosis; mitosis
5. A cell cycle consists of:
A. mitosis and meiosis.
B. G1, the S phase, and G2.
C. prophase, metaphase, anaphase, and telophase.
D. interphase and mitosis.
E. meiosis and fertilization.
6. The total DNA content of each daughter cell is reduced during meiosis because
A. chromosomes do not replicate during the interphase preceding meiosis I.
B. chromosomes do not replicate between meiosis I and II.
C. half of the chromosomes from each gamete are lost during fertilization.
D. sister chromatids separate during anaphase of meiosis I.
E. chromosome arms are lost during crossing over.
1. In addition to some species that cause harmful algal blooms, dinoflagellates are common endosymbionts of:
A. coral. B. fungi. C. other dinoflagellates. D. tertiary endosymbionts.
E. None of the above
2. Which of the following is not true of conjugation in Paramecium?
A. Micronuclei disintegrate.
B. Meiosis takes place.
C. It is a reproductive process.
D. Mitosis takes place.
E. It is a sexual process of genetic recombination.
3. Some algae demonstrate the phenomenon of alternation of generations, by which a multicellular, diploid, spore-producing organism gives rise to a multicellular, haploid, gamete-producing organism. Which of the following statements about alternation of generations is false?
A. The haploid and diploid organisms may or may not differ morphologically.
B. The haploid and diploid organisms differ genetically.
C. Only the haploid organism may also reproduce asexually.
D. Haploid gametes can produce new organisms only by fusing with other gametes.
E. Diploid sporophytes may undergo meiosis to produce haploid spores.
5. Gametes are produced by in animals; and by in plants.
A. genitals; flowers
B. meiosis; meiosis
C. mitosis; meiosis
D. meiosis; mitosis
5. A cell cycle consists of:
A. mitosis and meiosis.
B. G1, the S phase, and G2.
C. prophase, metaphase, anaphase, and telophase.
D. interphase and mitosis.
E. meiosis and fertilization.
6. The total DNA content of each daughter cell is reduced during meiosis because
A. chromosomes do not replicate during the interphase preceding meiosis I.
B. chromosomes do not replicate between meiosis I and II.
C. half of the chromosomes from each gamete are lost during fertilization.
D. sister chromatids separate during anaphase of meiosis I.
E. chromosome arms are lost during crossing over.