Gametophyte - Study guides, Class notes & Summaries

GCU BIO-182 Exam 2 With 100% Correct Answers 2024 Green Algae - answer____________ called charophytes are the closest relatives of land plants. Land plants share four key traits with only charophytes - answer• Rings of cellulose- synthesizing complexes • Peroxisome enzymes • Structure of flagellated sperm • Formation of a phragmoplast Sporopollenin - answerIn charophytes a layer of a durable polymer called _____________ prevents exposed zygotes from drying out Sporopollenin - ...

alternation of generations - Answer-a life-cycle type in which the diploid and haploid stages alternate chiasmata (chiasma) - Answer-the structure that forms at the cross over points after genetic material is exchanged cohesin - Answer-proteins that form a complex that seals sister chromatids together at their centimetres until anaphase Crossover - Answer-exchange of genetic material between non-sister chromatids resulting in chromosomes that incorporate genes from both parents of the orga...

Question 1. Based on figure 4.1, is it correct to state that we understand deep relationships among Eukaryotes? How do we represent ambiguity in branching pattern on phylogenetic trees? Hint: look at figure 1.27. No, we cannot say we understand deep relationships among Eukaryotes because there is a polytomy that represents ambiguity on the phylogenetic tree. No, you cannot define deep relationships amongst eukaryotes because the nodes include polytomies which signifies ambiguity/indefinite...

Test Bank for Genetics A Conceptual Approach, 7th Edition Benjamin Pierce Test Bank for Chapter 2: Chromosomes and Cellular Reproduction Multiple-Choice Questions 1. Which of the following statements is false? a. Errors in chromosome separation are rarely a problem for an organism. b. Errors in chromosome separation can result in a miscarriage. c. Errors in chromosome separation can result in cancer. d. Errors in chromosome separation can result in a child with severe handicaps. e. Erro...

1. In both bryophytes and vascular plants, meiosis occurs in the dominant or most conspicuous phase of the life cycle. a) true b) false CORRECT ANSWER b In the life cycles of mosses and ferns, which of the structures are diploid? Select all that apply. a) sporophyte b) gametophyte c) zygote d) sperm e) eggs CORRECT ANSWER a, c Diploid (2n) cells in the _____ of mosses, ferns, gymnosperms, and angiosperms divide meiotically and form haploid (1n) spores. a) sporangium b) gonad...

Pre-lab 5: Introduction to Plant Diversity II Question 1. In contrast to Bryophytes, Lycophytes, and Monilophytes what specific advantage does pollen provide to seed plants in terms of their reproductive biology? Pollen is advantageous because it does not need water for the male cell to reach the female cell. Instead, pollinators transfer the different cells. Question 2. In contrast to Bryophytes, Lycophytes, and Monilophytes what specific advantage do seeds provide to seed plants in terms...

"Hairy Flagellum" of Stramenopile - A flagellum with hair-like appendages; unique to the group Stramenopile. "Slug" - An aggregation of slime mold cells to essentially form a multicellular body. Absorption - A mode of nutrition in some Ciliates. Active transport - Energy-requiring process that moves material across a cell membrane against a concentration difference. Agar - Another material that makes up cell walls of Red Algae. Alginate - A material that makes up the cell wall of Brow...

Flowers - specialized structure for sexual reproduction, pollination by animals (insects, mammals, birds) and wind Seed - consists of an embryo and nutrients surrounded by a protective coat. Gametophytes of seed plants - develop within the walls of spores that are retained within tissues of the parent sporophyte The ancestors of seed plants were most likely_____, while seed plants are ________. - homosporous; heterosporous Ovule - consists of a megasporangium, megaspore, and one or more p...

Importance of plants Correct Answer-food, natural products, ecosystem services (oxygen, ozone, coal), culture Preadaptations of Charophytes Correct Answer-fresh water spores covered in sporopollenin, life cycle allows dispersal by wind (spores) Gametophyte Correct Answer-haploid (n), makes gametes by mitosis Sporophyte Correct Answer-diploid (2n), makes spores by meiosis Alternation of Generations Correct Answer-Gametophytes go through mitosis to create gametes, which form zygote, zy...

Biology Practice Exam Questions And Answers 100% Guaranteed Pass. A plant, such as an iris, that reproduces asexually most of the time probably A) is found in a changing environment. B) produces offspring that move into new environments. C) lacks the ability to make flowers. D) forms spores. E) has offspring that live in the same environment as the parents. - AnswerE An oak tree is a A) sporophyte. B) gametophyte. C) gamete. D) spore. E) zygote. - AnswerA 8) The sexual life cycle o...