In the moss Polytrichum commune, the haploid chromosome number is 7. A haploid male gamete fuses...
In the moss Polytrichum commune, the haploid chromosome number is 7. A haploid male gamete fuses with a haploid female gamete to form a diploid cell that divides and develops into the multicellular sporophyte. Cells of the sporophyte undergo meiosis to produce haploid cells called spores. What is the probability that an individual spore will contain a set of chromosomes all of which came from the male gamete? (You may assume that no crossing over occurs during meiosis.)
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0 |
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0.5 |
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0.143 |
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0.008 |
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there’s not enough information to tell |
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In the moss Polytrichum commune, the haploid chromosome
number is 7. A haploid male gamete fuses...
Phylum Hepatophyta: Liverworts Like the moss, liverworts begin as a haploid spore. As a liverwort spore...
Phylum Hepatophyta:
Liverworts
Like the moss, liverworts begin as a haploid spore. As a
liverwort spore germinates, it develops into a flat, lobed,
leaf-like structure called a thallus. The thallus
grows prostrate with the ground’s surface, forming
rhizoids that anchor it in place.
Liverworts reproduce asexually primarily by
fragmentation; however, some liverworts may also
reproduce asexually by bundles of tissue called
gemmae. In many liverworts, gemmae develop in
small cup-like structures called gemmae cups.
Splashed from the cups by rain,...
arrange the following structures or prosses into a diagram showing the life cycle of a moss...
arrange the following structures or prosses into a
diagram showing the life cycle of a moss plant
1 What is meant by alternation of generations? alternation of generations between haploid and diploid the grocess their life that life Cycle cycle in alternate 2 What type of nuclear division is involved in the development of a sporophyte plant? Of the spores? meiosis ; Mitosis REVIEW QUESTIONS 3 Arrange the following structures or processes into a diagram showing the life cycle of...
Complete the table below based about the alternation of generation of land plants based on the...
Complete the table below based about the alternation of
generation of land plants based on the photo:
Mitosis Multicellular Gametophyte Spores Gametes Gametophyte Generation Haploid (N) Meiosis Fertilization Sporophyte Generation Diploid (2N) Zygote Multicellular Sporophyte Mitosis Sporophyte | Spore Male Gametophyte Female/ Hermaphrodite. Gametophyte Gamete | Zygote | Seed Is the stage 1N or 2N? Is the stage 1 cell or many?
(11) a. How are spores of a moss plant disseminated? b. What is the chromosome complement...
(11) a. How are spores of a moss plant disseminated? b. What is the chromosome complement (i.e. ploidy) of the nucleus of a spore? Explain. c. Which plant body of the moss alternation of generations life cycle produces the capsule? (12) a. Which stages of the alternation of generations life cycle of plants contain multicellular plant bodies? b. Which of the multicellular plant bodies is long-lived in the Flowering Plant life cycle. c. Are cells of a flowering plant seed...
BIOL 1020 Homework Evolution & Natural Selection 4 NATURAL SELECTION: 1. In your OWN words, explain...
BIOL 1020 Homework Evolution & Natural Selection 4 NATURAL SELECTION: 1. In your OWN words, explain what natural selection is. What is required? What is the result? 2. True or false? For natural selection to work, a population must have genetic variation. Explain your answer. 3. List three sources of genetic variation in a population. Identify which sources are most important for asexually reproducing organisms. Which method is most important for sexually reproducing organisms? 4. List three mechanisms which cause...
9. The fusion of a and a _produces a zygote with 46 (2n) chromosome number. 10....
9. The fusion of a and a _produces a zygote with 46 (2n) chromosome number. 10. During meiosis, the chromosome number: a) is doubled b) is reduced c) remains the same d) becomes diploid 11. Meiosis produces haploid (#) reproductive cells called _ 12. Name the 2 human gametes & tell their chromosome number. 13. Cells starting mitosis & meiosis begin with a (haploid or diploid) set of chromosomes. 14. How many times do cells divide during meiosis? 15. What...
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...
23. The concept that a random distribution of alleleş occurs during gamete formation is the (A)...
23. The concept that a random distribution of alleleş occurs during gamete formation is the (A) law of segregation. (C) law C (B) concept of dominance. (D) concept of probability f independent assortment. 24 At the end of mitosis, how many haploid cells are there? (A) 0 (B 2 (C)4 (D) 8 25.At the end of meiosis II how many haploid cells are there? 26.The cross TiPpx TiPpis a 27. The diploid number of chromosomes in humanis is 28. micrograpi...
please help and thank you Materials Needed per class: 1 box of 24 microscope slides of...
please help and thank you
Materials Needed per class: 1 box of 24 microscope slides of meiosis 1 1 box of 24 microscope slides of meiosis 2 red and yellow popbead chromosome kits Objectives To become familiar with the process of meiosis and to be able to identify the principal phases of meiosis To understand how the process of meiosis is similar to mitosis and how it differs from mitosis Introduction The genetic information of a cell is encoded in...
Phylum Hepatophyta:
Liverworts
Like the moss, liverworts begin as a haploid spore. As a
liverwort spore germinates, it develops into a flat, lobed,
leaf-like structure called a thallus. The thallus
grows prostrate with the ground’s surface, forming
rhizoids that anchor it in place.
Liverworts reproduce asexually primarily by
fragmentation; however, some liverworts may also
reproduce asexually by bundles of tissue called
gemmae. In many liverworts, gemmae develop in
small cup-like structures called gemmae cups.
Splashed from the cups by rain,...
arrange the following structures or prosses into a
diagram showing the life cycle of a moss plant
1 What is meant by alternation of generations? alternation of generations between haploid and diploid the grocess their life that life Cycle cycle in alternate 2 What type of nuclear division is involved in the development of a sporophyte plant? Of the spores? meiosis ; Mitosis REVIEW QUESTIONS 3 Arrange the following structures or processes into a diagram showing the life cycle of...
Complete the table below based about the alternation of
generation of land plants based on the photo:
Mitosis Multicellular Gametophyte Spores Gametes Gametophyte Generation Haploid (N) Meiosis Fertilization Sporophyte Generation Diploid (2N) Zygote Multicellular Sporophyte Mitosis Sporophyte | Spore Male Gametophyte Female/ Hermaphrodite. Gametophyte Gamete | Zygote | Seed Is the stage 1N or 2N? Is the stage 1 cell or many?
(11) a. How are spores of a moss plant disseminated? b. What is the chromosome complement (i.e. ploidy) of the nucleus of a spore? Explain. c. Which plant body of the moss alternation of generations life cycle produces the capsule? (12) a. Which stages of the alternation of generations life cycle of plants contain multicellular plant bodies? b. Which of the multicellular plant bodies is long-lived in the Flowering Plant life cycle. c. Are cells of a flowering plant seed...
BIOL 1020 Homework Evolution & Natural Selection 4 NATURAL SELECTION: 1. In your OWN words, explain what natural selection is. What is required? What is the result? 2. True or false? For natural selection to work, a population must have genetic variation. Explain your answer. 3. List three sources of genetic variation in a population. Identify which sources are most important for asexually reproducing organisms. Which method is most important for sexually reproducing organisms? 4. List three mechanisms which cause...
9. The fusion of a and a _produces a zygote with 46 (2n) chromosome number. 10. During meiosis, the chromosome number: a) is doubled b) is reduced c) remains the same d) becomes diploid 11. Meiosis produces haploid (#) reproductive cells called _ 12. Name the 2 human gametes & tell their chromosome number. 13. Cells starting mitosis & meiosis begin with a (haploid or diploid) set of chromosomes. 14. How many times do cells divide during meiosis? 15. What...
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...
23. The concept that a random distribution of alleleş occurs during gamete formation is the (A) law of segregation. (C) law C (B) concept of dominance. (D) concept of probability f independent assortment. 24 At the end of mitosis, how many haploid cells are there? (A) 0 (B 2 (C)4 (D) 8 25.At the end of meiosis II how many haploid cells are there? 26.The cross TiPpx TiPpis a 27. The diploid number of chromosomes in humanis is 28. micrograpi...
please help and thank you
Materials Needed per class: 1 box of 24 microscope slides of meiosis 1 1 box of 24 microscope slides of meiosis 2 red and yellow popbead chromosome kits Objectives To become familiar with the process of meiosis and to be able to identify the principal phases of meiosis To understand how the process of meiosis is similar to mitosis and how it differs from mitosis Introduction The genetic information of a cell is encoded in...
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