Homework Answers
Moss antheridia is the part of the gametophytic life cycle of the moss. Other part consists of the sporophyte which is diploid (2n) in number. The diplod spores undergo meiosis to give haploid (n) spores. The spores upon germination, form the gametophyte which is haploid and dioecious which means it has different male and female sex organs, antheridium and archegonium containing the sperms and the egg respectively. The fertilization of the haploid sperm and egg form the diploid zygote giving rise to the diploid sporophyte.
a. The chromosome number of the sperm is in haploid condition. Generally the mosses have chromosomes (haploid, n) ranging from 4-11.
b.Since the sperm is found in the male sex organ of the gametophyte which is haploid, which means that the cells of the gametophyte are haploid. Hence the cells surrounding the sperm are also haploid.
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5. Moss Antheridia slide b. Are the surrounding cells haploid or diploid? a. What is the...
5 LLLULU, UPILL 28.h. Are sperm haploid or diploid? Examine slide of moss life history (DO...
5 LLLULU, UPILL 28.h. Are sperm haploid or diploid? Examine slide of moss life history (DO NOT DRAW) 28. i. What event begins the sporophyte phase of the life cycle? Where does this event occur in mosses and liverworts? 28. j. What event begins the gametophyte phase of the life cycle? Where does it occur in mosses and liverworts?
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.) 0 0.5...
Match the terms with their description. A. Gametes B. Chromosome Sex cells body cells Diploid Haploid...
Match the terms with their description. A. Gametes B. Chromosome Sex cells body cells Diploid Haploid C. Somatic D. Alleles Contains thousands of genes and many proteins variations of a gene
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,...
Meiosis makes _____ cells, mitosis makes _____ cells diploid, haploid No answer text provided. diploid, diploid...
Meiosis makes _____ cells, mitosis makes _____ cells diploid, haploid No answer text provided. diploid, diploid haploid, diploid
Part A The process of meiosis O begins with diploid cells and ends with haploid cells...
Part A The process of meiosis O begins with diploid cells and ends with haploid cells begins with haploid cells and ends with haploid cells O begins with haploid cells and ends with diploid cells O begins with diploid cells and ends with diploid cells Submit Request Answer Provide Feedback Chapter 10 Chapter 10 Question 18 - Multiple Choice Part A An advantage of sexual reproduction and melosis is that O organisms remain stable in a changing environment O mary...
(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...
The yeast Saccharomyces cerevisiae can grow as haploid or diploid cells. You have two haploid yeast...
The yeast Saccharomyces cerevisiae can grow as haploid or diploid cells. You have two haploid yeast strains that each carry recessive mutations that affect regulation of the genes required for galactose metabolism. One strain has a deletion of the region of the genome on chromosome II that lies between the GAL1 and GAL10 genes (deltaUAS). The other strain carries a mutant allele of the GAL80 gene on chromosome XIII that produces no functional GAL80 protein. Which of the following correctly...
The process of sexual reproduction versus several forms of parthenogenesis sexual reproduction haploid parthenogenesis diploid parthenogenesis...
The process of sexual reproduction versus several forms of parthenogenesis sexual reproduction haploid parthenogenesis diploid parthenogenesis meiosis meiosis automixis meiosis apomixis mitosis oocyte (immature female egg cell) spermatocyte (male sperm cell) oocyte oocyte female egg cell diploid zygote chromosome replication fuse with other oocyte haploid zygote (2n 2n diploid egg develops into diploid individual diploid zygote develops into haploid individual haploid (2n) diploid develops into diploid individual develops into diploid individual © Encyclopædia Britannica, Inc. Answer the questions below in...
QUESTION 3 Which of the following cells/structures is/are haploid? O a. fungal hyphae O b moss...
QUESTION 3 Which of the following cells/structures is/are haploid? O a. fungal hyphae O b moss gametophyte O c. fern spore Dictyostelium amoeba e. All of the above are haploid.
5 LLLULU, UPILL 28.h. Are sperm haploid or diploid? Examine slide of moss life history (DO NOT DRAW) 28. i. What event begins the sporophyte phase of the life cycle? Where does this event occur in mosses and liverworts? 28. j. What event begins the gametophyte phase of the life cycle? Where does it occur in mosses and liverworts?
Match the terms with their description. A. Gametes B. Chromosome Sex cells body cells Diploid Haploid C. Somatic D. Alleles Contains thousands of genes and many proteins variations of a gene
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,...
Part A The process of meiosis O begins with diploid cells and ends with haploid cells begins with haploid cells and ends with haploid cells O begins with haploid cells and ends with diploid cells O begins with diploid cells and ends with diploid cells Submit Request Answer Provide Feedback Chapter 10 Chapter 10 Question 18 - Multiple Choice Part A An advantage of sexual reproduction and melosis is that O organisms remain stable in a changing environment O mary...
(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...
The process of sexual reproduction versus several forms of parthenogenesis sexual reproduction haploid parthenogenesis diploid parthenogenesis meiosis meiosis automixis meiosis apomixis mitosis oocyte (immature female egg cell) spermatocyte (male sperm cell) oocyte oocyte female egg cell diploid zygote chromosome replication fuse with other oocyte haploid zygote (2n 2n diploid egg develops into diploid individual diploid zygote develops into haploid individual haploid (2n) diploid develops into diploid individual develops into diploid individual © Encyclopædia Britannica, Inc. Answer the questions below in...
QUESTION 3 Which of the following cells/structures is/are haploid? O a. fungal hyphae O b moss gametophyte O c. fern spore Dictyostelium amoeba e. All of the above are haploid.
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