Homework Answers
Answer option 2 haploid.
In ferns, meiosis within the sporangia of diploid sporophyte produces haploid spores that are released and germinate to form male and female gametophyte.
Option1 is wrong .Spores divide mitotically to produce heart shaped gametophyte.This gametophyte is photosynthetic and independent.
Option 3 is incorrect .Ovules are structures present in seed plants that contains the female reproductive cells.The sporangia of ferns are found in clusters known as sori on the lowerside of fern leaves.Some ferns have a covering over the spoangia known as an indusium.
Option 4 is also wrong .Within the sporangia of ferns sporogenous cells undergo meiosis to form haploid spores.
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Most spores, released by ferns are O depends on the fern O haploid O protected by...
ving questions about ferns: 1. Are the spores produced by the fern sporophyte formed by mitosis...
ving questions about ferns: 1. Are the spores produced by the fern sporophyte formed by mitosis or meiosis? 2. Do the spores belong to the gametophyte or the sporophyte generation? 3. Are the gametes produced by mitosis or meiosis? 4. Are the archegonia and antheridia haploid or diploid? (HINT: Think about which generation produces them) 5. Is the dominant generation for the fern the gametophyte or the sporophyte? 6. Can you suggest an ecological role for ferns?
Which set contains the most closely related terms? megasporangium, megaspore, pollen, ovule microsporangium, microspore, egg, ovary...
Which set contains the most closely related terms? megasporangium, megaspore, pollen, ovule microsporangium, microspore, egg, ovary megasporangium, megaspore, egg, ovule microsporangium, microspore, carpel, ovary In the process of alternation of generations, the _. sporophyte is haploid and produces gametes sporophyte is diploid and produces spores gamctophyte is haploid and produces spores gametophyte is diploid and produces gametes spores unite to form a zygote Where are you LEAST likely to sec green algae? as pink snow in the mountains in summer...
In ferns, both the gametophyte and sporophyte are physiologically capable of surviving on their own. Which...
In ferns, both the gametophyte and sporophyte are physiologically capable of surviving on their own. Which of the following are reasonable hypotheses for why vascular tissues are present only in the sporophyte generation? Select all that apply. There is no advantage for the gametophyte to grow tall, because fern gametophytes typically produce only male or female gametes at any one time There is no advantage for the gametophyte to grow tall, because gametes must be produced near the ground where...
1. Label the microphylls and strobili in the Figure 1 below. Figure 1. Lycopodium sp. Examine...
1. Label the microphylls and strobili in the Figure 1 below. Figure 1. Lycopodium sp. Examine the prepared slide of a mature Lycopodium strobilus. (See text Figure 17-16, pages 406 and 407.) Note that Lycopodium, like most species in the Lycopodiaceae, is homosperous and only produces one type of spore 2. Label the spores in Figure 2 below. Figure 2. Lycopodium strobilus 1.s. 3. Given that Lycopodium is homosporaus, would you expect its gametophytes to be unisexual or bisexual? Explain...
Most scholars believe that the goodness of a particular theory depends upon that theory's: Answers O...
Most scholars believe that the goodness of a particular theory depends upon that theory's: Answers O narrowness. structure. utility. broadness.
_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...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part of the cell cycle > only some cells ever undergo meiosis During meiosis I, homologous chromosomes line up to allow them to be separated into two new cells o They can become "tangled" during this phase, which leads to crossing-over (rearranging the alleles) O Result of meiosis I is two non-identical haploid cells Meiosis Il looks very similar to mitosis, in that sister chromatids...
ving questions about ferns: 1. Are the spores produced by the fern sporophyte formed by mitosis or meiosis? 2. Do the spores belong to the gametophyte or the sporophyte generation? 3. Are the gametes produced by mitosis or meiosis? 4. Are the archegonia and antheridia haploid or diploid? (HINT: Think about which generation produces them) 5. Is the dominant generation for the fern the gametophyte or the sporophyte? 6. Can you suggest an ecological role for ferns?
Which set contains the most closely related terms? megasporangium, megaspore, pollen, ovule microsporangium, microspore, egg, ovary megasporangium, megaspore, egg, ovule microsporangium, microspore, carpel, ovary In the process of alternation of generations, the _. sporophyte is haploid and produces gametes sporophyte is diploid and produces spores gamctophyte is haploid and produces spores gametophyte is diploid and produces gametes spores unite to form a zygote Where are you LEAST likely to sec green algae? as pink snow in the mountains in summer...
1. Label the microphylls and strobili in the Figure 1 below. Figure 1. Lycopodium sp. Examine the prepared slide of a mature Lycopodium strobilus. (See text Figure 17-16, pages 406 and 407.) Note that Lycopodium, like most species in the Lycopodiaceae, is homosperous and only produces one type of spore 2. Label the spores in Figure 2 below. Figure 2. Lycopodium strobilus 1.s. 3. Given that Lycopodium is homosporaus, would you expect its gametophytes to be unisexual or bisexual? Explain...
Most scholars believe that the goodness of a particular theory depends upon that theory's: Answers O narrowness. structure. utility. broadness.
_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...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part of the cell cycle > only some cells ever undergo meiosis During meiosis I, homologous chromosomes line up to allow them to be separated into two new cells o They can become "tangled" during this phase, which leads to crossing-over (rearranging the alleles) O Result of meiosis I is two non-identical haploid cells Meiosis Il looks very similar to mitosis, in that sister chromatids...
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