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Chapter 11: Q. 16 (page 295)

A diploid, multicellular life-cycle stage that gives rise to haploid cells by meiosis is called a ________.

a. sporophyte

b. gametophyte

c. spore

d. gamete

Short Answer

Expert verified

The correct answer is option a

Step by step solution

01

Step 1. Introduction

Plants have three different life cycle that is haploid (n), diploid (2n), and haploid-diploid or alternation of generation.

02

Step 2. Explanation of the correct options

Option a is correct because the sporophyte is a diploid multicellular individual of the plant which produces haploid spores by meiosis.

03

Step 3. Explanation of the incorrect option

Option b is incorrect because gametophyte is a haploid organism or sexual phase of a plant that shows alternation of generations and produces gametes.

Option c is incorrect because a spore is a haploid cell produced by sporophytes through meiosis. They can produce new individuals without fusion with another cell.

Option d is incorrect because gamete is gametes or sex cells are haploid cells that fuse with other reproductive sex cells to produce a zygote.

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Most popular questions from this chapter

Explain why sexual reproduction is beneficial to a population but can be detrimental to an individual offspring.

The pea plants used in Mendel鈥檚 genetic inheritance studies were diploid, with 14 chromosomes in somatic cells. Assuming no crossing-over events occur, how many unique gametes could one pea plant produce?

a. 28

b. 128

c. 196

d. 16,384

Animals and plants both have diploid and haploid cells. How does the animal life cycle differ from the alternation of generations exhibited by plants?

The part of meiosis that is similar to mitosis is ________.

a. meiosis I

b. anaphase I

c. meiosis II

d. interkinesis

What is a likely evolutionary advantage of sexual reproduction over asexual reproduction?

a. Sexual reproduction involves fewer steps.

b. There is a lower chance of using up the resources in a given environment.

c. Sexual reproduction results in variation in the offspring.

d. Sexual reproduction is more cost-effective.
See all solutions

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