/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q29-3TYU. In plants, which of the followin... [FREE SOLUTION] | 91影视

91影视

In plants, which of the following are produced by meiosis?

(A) haploid gametes

(B) diploid gametes

(C) haploid spores

(D) diploid spores

Short Answer

Expert verified

(A)The option 鈥渉aploid gametes鈥 is incorrect.

(B)The option 鈥渄iploid gametes鈥 is incorrect.

(C)The option 鈥渉aploid spores鈥 is correct.

(D)The option 鈥渄iploid spores鈥 is incorrect.

Step by step solution

01

Meiosis in plants

In plants, cell division occurs by meiosis. In meiosis, each parent plant shares half of its genetic material with the offspring. The produced spores then further divide by mitosis and develop into a multicellular haploid organism.

02

Explanation of option ‘(A)’

In plants, the process of mitosis leads to the formation of haploid gametes. The process of meiosis produces spores which, by mitosis, further leads to the formation of spores.

Thus, a haploid gamete is not formed by the process of meiosis.

Therefore, the given option is incorrect.

03

Explanation of option ‘(B)’

The process of mitosis always produces gametes that are in the haploid phase and not in the diploid. The division of diploid cells forms gametes. Thus gametes are always haploid.

Thus, a diploid gamete is not produced in the plants by meiosis.

Therefore, the given option is incorrect.

04

Explanation of option ‘(C)’

In plants, the process of meiosis leads to the formation of haploid spores. The spores are produced when the diploid sporophyte experiences meiosis. In each meiosis, two spores are produced in a microspore and a megaspore.

Thus, the plant cells form haploid spores by meiosis.

Therefore, the given option is correct.

05

Explanation of option ‘(D)’

The fusion of two gametes results in the formation of diploid spores. The phase in which spores are formed is called the sporophyte phase.

Thus, plant cells do not form a diploid spore during meiosis.

Therefore, the given option is incorrect.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

EVOLUTION CONNECTION DRAW IT Draw a phylogenetic tree that represents our current understanding of evolutionary relationships between a moss, a gymnosperm, a lycophyte, and a fern. Use a charophyte alga as the outgroup. (See Figure 26.5 to review phylogenetic trees.) Label each branch point of the phylogeny with at least one derived character unique to the clade descended from the common ancestor represented by the branch point.

The feather moss Pleuroziumschreberiharbors species of symbiotic nitrogen-fixing bacteria. Scientists studying this moss in northern forests found that the percentage of the ground surface 鈥渃overed鈥 by the moss increased from about 5% in forests that burned 35 to 41 years ago to about 70% in forests that burned 170 or more years ago. From mosses growing in these forests, they also obtained the following data on nitrogen fixation:

(a) Use the data to draw a line graph, with age on the x-axis and the nitrogen fixation rate on the y-axis.

(b) Along with the nitrogen added by nitrogen fixation, about 1 kg of nitrogen per hectare per year is deposited into northern forests from the atmosphere as rain and small particles. Evaluate the extent to which Pleurozium affects nitrogen availability in northern forests of different ages.

Identify each of the following structures as haploid or diploid.

(A) sporophyte

(B) spore

(C) gametophyte

(D) zygote

How do the main similarities and differences between seedless vascular plants and nonvascular plants affect function in these plants?

Suppose an efficient conducting system evolved in a moss that could transport water and other materials as high as a tall tree. Which of the following statements about 鈥渢rees鈥 of such a species would notbe true?

(A) Spore dispersal distances would probably increase.

(B) Females could produce only one archegonium.

(C) Unless its body parts were strengthened, such a 鈥渢ree鈥

would probably flop over.

(D) Individuals would probably compete more effectively for

access to light.

See all solutions

Recommended explanations on Biology Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.