What phase of the bryophyte life cycle is dominant?

The haploid stage, in which a multicellular haploid gametophyte develops from a spore and produces haploid gametes, is the dominant stage in the bryophyte life cycle. The mature gametophyte produces both male and female gametes, which join to form a diploid zygote.

1. What is the dominant phase of the life cycle?
2. Which phase is dominant in the life cycle of bryophytes and Pteridophytes?
3. Is the dominant and independent phase in bryophytes?
4. Why gametophyte is dominant in bryophytes?
5. What is the dominant stage of angiosperms?
6. What is the photosynthetic phase of bryophytes?
7. Is the dominant phase in the life cycle of a Pteridophyte?
8. Which phase is predominant in the life cycle of pteridophytes?
9. Which generation is dominant in bryophytes?
10. What is predominant stage?
11. Which life cycle phase follows the haploid multicellular phase in bryophytes?
12. Which of the following plants has a dominant gametophyte stage?
13. Are the pioneer structure of gametophyte generation of bryophytes?
14. What are the dominant phases for each of the different plants?
15. Which generation is dominant in the moss life cycle?

What is the dominant phase of the life cycle?

During the course of evolution, the sporophyte stage has become progressively increased. Thus, in the higher (i.e., vascular) plants the sporophyte is the dominant phase in the life cycle, whereas in the more primitive nonvascular plants (bryophytes) the gametophyte remains dominant.

Which phase is dominant in the life cycle of bryophytes and Pteridophytes?

In Bryophytes, the dominant phase is the gametophyte and in Pteridophytes, it is the sporophyte.

Is the dominant and independent phase in bryophytes?

In bryophytes, the dominant phase is represented by a gametophytic plant. The gametophyte is independent, photosynthetic, thalloid phase. Antheridia and archegonia are formed on the gametophyte. These organs are multicellular.

Why gametophyte is dominant in bryophytes?

Sporophytes produce haploid spores by meiosis, that grow into gametophytes. Bryophytes are gametophyte dominant, meaning that the more prominent, longer-lived plant is the haploid gametophyte. The diploid sporophytes appear only occasionally and remain attached to and nutritionally dependent on the gametophyte.

What is the dominant stage of angiosperms?

Angiosperms are vascular plants, and all vascular plants have a life cycle in which the sporophyte phase (vegetative body) is the dominant phase and the gametophyte phase remains diminutive.

What is the photosynthetic phase of bryophytes?

In bryophytes (liverworts, hornworts, and mosses), the gametophyte stage is dominant. The leafy green structures we recognize (Figure below) are haploid, and perform most of the photosynthesis.

Is the dominant phase in the life cycle of a Pteridophyte?

The sporophyte. The dominant phase of generation in their life cycle is the diploid sporophyte. ... Thus, the dominant phase is sporophyte in pteridophytes.

Which phase is predominant in the life cycle of pteridophytes?

In Bryophytes, the dominant phase is the gametophyte and in Pteridophytes, it is the sporophyte.

Which generation is dominant in bryophytes?

In bryophytes, such as mosses and liverworts, the gametophyte is the dominant life phase, whereas in angiosperms and gymnosperms the sporophyte is dominant.

What is predominant stage?

The predominant stage of the life cycle of a moss is the gametophyte which in turn comprises 2 stages – protonema stage and leafy stage.

Which life cycle phase follows the haploid multicellular phase in bryophytes?

Gametes develop in the multicellular haploid gametophyte (from the Greek phyton, “plant”). Fertilization gives rise to a multicellular diploid sporophyte, which produces haploid spores via meiosis. This type of life cycle is called a haplodiplontic life cycle (Figure 20.1).

Which of the following plants has a dominant gametophyte stage?

The correct answer is 3. "moss". Mosses belong to the group, bryophyta. All bryophytes have a dominant gametophyte stage in which structures...

Are the pioneer structure of gametophyte generation of bryophytes?

Haploid spore (n) is considered pioneer in gametophytic generation of bryophytes. ... Protonema is the gametophytic structure developed from germination of spore and perichaetium is the name given to the leaves surrounding the archegonia.

What are the dominant phases for each of the different plants?

Plants have two distinct stages in their lifecycle: the gametophyte stage and the sporophyte stage. The haploid gametophyte produces the male and female gametes by mitosis in distinct multicellular structures. Fusion of the male and females gametes forms the diploid zygote, which develops into the sporophyte.

Which generation is dominant in the moss life cycle?

In bryophytes (mosses and liverworts), the dominant generation is haploid, so that the gametophyte comprises what we think of as the main plant. The opposite is true for tracheophytes (vascular plants), in which the diploid generation is dominant and the sporophyte comprises the main plant.