Homework Answers
Archegonia of plants are the sites where female gamates are produced.
They are present in the non-flowering plants, and are female sex organs, where the ovum is produced and stored
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QUESTION 13 Archegonia of plants A. have the same function as sporangia. B. make asexual reproductive...
Question 18 Which of the following statements is true of archegonia? They may temporarily contain sporophyte...
Question 18 Which of the following statements is true of archegonia? They may temporarily contain sporophyte embryos. They are the sites where male gametes are produced. They are the same as antheridia. O They are the ancestral versions of animal gonads. They are asexual reproductive structures. Which of the following should have had gene sequences most similar to the charophyte/charale that was the common ancestor of the land plants? O early gymnosperms O early lycophytes early pterophytes (psilotopsida) early angiosperms...
51 Review questions: 1. Does the thallus contain vascular tisues? 2. 1s the thallus the gametophyte...
51 Review questions: 1. Does the thallus contain vascular tisues? 2. 1s the thallus the gametophyte or the sporophyte generation? 3. Where are the rhizoids located and what is their function? 4. Where is the pore located and what is its function? (similar to stoma in higher plants) 5. Is the gemmae cup a sexual or asexual reproductive structure? 6. Are gemmae haploid or diploid?_ 7. When rain splashes the gemmae out of the cup, what do they grow into?...
"Alternation of Generation" means that: a) plants alternate between sexual and asexual reproduction b) plants rest...
"Alternation of Generation" means that: a) plants alternate between sexual and asexual reproduction b) plants rest for a generation before reproducing again c) plants alternate between haploid and diploid stages during their life cycle d) plants produce either spores, gametes, but not both
28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living...
28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living gametophytes; D) are all monoecious; E) none of the above 29. The first land plants share a most recent common ancestor with a group of aquatic organisms that lived in the littoral zone known as: A) charophyceans; B) chlorophytes; C) catphytes; D) coanocytes; E) cycadophytes 30. Which of the following is true for organisms with zygotic meiosis? A) The gametes are produced from haploid...
_28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living...
_28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living gametophytes; D) are all monoecious; E) none of the above 29. The first land plants share a most recent common ancestor with a group of aquatic organisms that lived in the littoral zone known as: A) charophyceans; B) chlorophytes; C) catphytes; D) coanocytes; E) cycadophytes 30. Which of the following is true for organisms with zygotic meiosis? A) The gametes are produced from haploid...
growth -Interphase 7 In plants, . (Circle the correct answer.) a. the life cycle is different...
growth -Interphase 7 In plants, . (Circle the correct answer.) a. the life cycle is different from that of animals in that plants alternate between diploid and haploid forms b. meiosis occurs in the ovary of female plants and male gametes are produced in the anthers of flowers c. there are two distinct phases: n sporophyte generation and 2n gametophyte generation e. both a and c 8 What are polar bodies? What are they used for? A a small haploid...
1) What were some of the challenges that plants had as they moved onto land? (Check...
1) What were some of the challenges that plants had as they moved onto land? (Check all that apply.) A. They no longer had structural support of water. B. They didn’t have water to stop dispersal of gametes. C. They were in danger of drying out without water. D. They were not as susceptible to predators and predators. 2) Pollen grains were a great adaptation for land plants because A. They allowed for dispersal for gametes via wind or animals...
Question 9 1 pts Changes in ploidy in plants are typically tolerated and have minor effects...
Question 9 1 pts Changes in ploidy in plants are typically tolerated and have minor effects on survival or fertility, and it can often lead to rapid speciation. How are these changes preserved in the next generation? The ability to self-fertilize enables the plant to reproduce with itself, preserving the new ploidy levels. O The changes can only be preserved in the next generation in plants that are capable of asexual reproduction. O The changes are preserved via cross-pollination with...
For the following questions, use these answers: a. yes (meaning at least some members have this...
For the following questions, use these answers: a. yes (meaning at least some members have this characteristic) b. no (no members have this characteristic) 14. Bryophytes have free-living gametophytes 15. Gymnosperms have free-living gametophytes. 6. Gymnosperms have flagellated sperm. 17. Angiosperms have flagellated sperm. 19. Angiosperms have a dominate sporophyte generation 20. Bryophytes have microphylls. 21 Vascular seedless plants have archegonia 22. Angiosperms have archegonia. - ANS 23. Gnetophytes may be the direct ancestors of angiosperms because: some gnetophytes are...
15. You are studying com plants. You were able to determine that the gene for kernel...
15. You are studying com plants. You were able to determine that the gene for kernel color (C-colored and no color) and kernel waxiness (W = waxy and not waxy) are on the same chromosome and are 30 CM apart. You are ultimately interested in determining the potential phenotypic ratio if crossing over occurs. You start by crossing a male who is homozygous dominant for both genes with a female who is homozygous recessive for both genes. The F1 heterozygotes...
Question 18 Which of the following statements is true of archegonia? They may temporarily contain sporophyte embryos. They are the sites where male gametes are produced. They are the same as antheridia. O They are the ancestral versions of animal gonads. They are asexual reproductive structures. Which of the following should have had gene sequences most similar to the charophyte/charale that was the common ancestor of the land plants? O early gymnosperms O early lycophytes early pterophytes (psilotopsida) early angiosperms...
51 Review questions: 1. Does the thallus contain vascular tisues? 2. 1s the thallus the gametophyte or the sporophyte generation? 3. Where are the rhizoids located and what is their function? 4. Where is the pore located and what is its function? (similar to stoma in higher plants) 5. Is the gemmae cup a sexual or asexual reproductive structure? 6. Are gemmae haploid or diploid?_ 7. When rain splashes the gemmae out of the cup, what do they grow into?...
28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living gametophytes; D) are all monoecious; E) none of the above 29. The first land plants share a most recent common ancestor with a group of aquatic organisms that lived in the littoral zone known as: A) charophyceans; B) chlorophytes; C) catphytes; D) coanocytes; E) cycadophytes 30. Which of the following is true for organisms with zygotic meiosis? A) The gametes are produced from haploid...
_28. Seed plants: A) are all heterosporous; B) have motile sperm; C) have photosynthetic, free- living gametophytes; D) are all monoecious; E) none of the above 29. The first land plants share a most recent common ancestor with a group of aquatic organisms that lived in the littoral zone known as: A) charophyceans; B) chlorophytes; C) catphytes; D) coanocytes; E) cycadophytes 30. Which of the following is true for organisms with zygotic meiosis? A) The gametes are produced from haploid...
growth -Interphase 7 In plants, . (Circle the correct answer.) a. the life cycle is different from that of animals in that plants alternate between diploid and haploid forms b. meiosis occurs in the ovary of female plants and male gametes are produced in the anthers of flowers c. there are two distinct phases: n sporophyte generation and 2n gametophyte generation e. both a and c 8 What are polar bodies? What are they used for? A a small haploid...
Question 9 1 pts Changes in ploidy in plants are typically tolerated and have minor effects on survival or fertility, and it can often lead to rapid speciation. How are these changes preserved in the next generation? The ability to self-fertilize enables the plant to reproduce with itself, preserving the new ploidy levels. O The changes can only be preserved in the next generation in plants that are capable of asexual reproduction. O The changes are preserved via cross-pollination with...
For the following questions, use these answers: a. yes (meaning at least some members have this characteristic) b. no (no members have this characteristic) 14. Bryophytes have free-living gametophytes 15. Gymnosperms have free-living gametophytes. 6. Gymnosperms have flagellated sperm. 17. Angiosperms have flagellated sperm. 19. Angiosperms have a dominate sporophyte generation 20. Bryophytes have microphylls. 21 Vascular seedless plants have archegonia 22. Angiosperms have archegonia. - ANS 23. Gnetophytes may be the direct ancestors of angiosperms because: some gnetophytes are...
15. You are studying com plants. You were able to determine that the gene for kernel color (C-colored and no color) and kernel waxiness (W = waxy and not waxy) are on the same chromosome and are 30 CM apart. You are ultimately interested in determining the potential phenotypic ratio if crossing over occurs. You start by crossing a male who is homozygous dominant for both genes with a female who is homozygous recessive for both genes. The F1 heterozygotes...
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