Question:
Read the following statements (a - e) and answer as asked
(a) In Equisetum, the female gametophyte is retained on the parent sporophyte
(b) In Ginkgo, male gametophyte is not independent
(c) The sporophyte in Riccia is more developed than that in Polytrichum
(d) Sexual reproduction in Volvox is isogamous
(e) The spores of slime moulds lack cell walls
How many of above statements are correct
Read the following statements (a - e) and answer as asked
(a) In Equisetum, the female gametophyte is retained on the parent sporophyte
(b) In Ginkgo, male gametophyte is not independent
(c) The sporophyte in Riccia is more developed than that in Polytrichum
(d) Sexual reproduction in Volvox is isogamous
(e) The spores of slime moulds lack cell walls
How many of above statements are correct
Updated On: Aug 6, 2024
- Two
- Three
- Four
- One
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Equisetum- Pteridophytes-free living gametophyte-Prothallus.
Riccia- It is liverwort in which simplest sporophyte consists of capsule only while polytrichum is moss in which sporphyte consists of foot seta and capsule.
Volvox- oogamy is present.
Slime moulds- Spores bear cell wall.
Riccia- It is liverwort in which simplest sporophyte consists of capsule only while polytrichum is moss in which sporphyte consists of foot seta and capsule.
Volvox- oogamy is present.
Slime moulds- Spores bear cell wall.
Was this answer helpful?
0
1
Top Questions on Pteridophytes
- Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence. A. Prothallus stage
B. Meiosis in spore mother cells
C. Fertilisation
D. Formation of archegonia and antheridia in gametophyte
E. Transfer of antherozoids to the archegonia in presence of water Choose the correct answer from the options given below:- NEET (UG) - 2025
- Biology
- Pteridophytes
- Among the following pteridophytes, the initial steps in evolutionary trend of seed development can be best seen in
- CUET (PG) - 2023
- Botany
- Pteridophytes
- Pick the correct group consisting of all genera exhibiting homospory.
- AIIMS - 2017
- Biology
- Pteridophytes
- Spore bearing leaf is called
- UPSEE - 2017
- Biology
- Pteridophytes
- Gametophyte of Pteridophyte is called:
- UPSEE - 2016
- Biology
- Pteridophytes
View More Questions
Questions Asked in NEET exam
- Given below are two statements:
Statement I: The DNA fragments extracted from gel electrophoresis can be used in the construction of recombinant DNA.
Statement II: Smaller size DNA fragments are observed near the anode while larger fragments are found near the wells in an agarose gel.- NEET (UG) - 2025
- Molecular Biology
Given below are two statements:
Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below:- NEET (UG) - 2025
- RNA interference
- Given below are two statements: Statement I: In the RNA world, RNA is considered the first genetic material evolved to carry out essential life processes. RNA acts as a genetic material and also as a catalyst for some important biochemical reactions in living systems. Being reactive, RNA is unstable.
Statement II: DNA evolved from RNA and is a more stable genetic material. Its double helical strands being complementary, resist changes by evolving repair mechanisms. In the light of the above statements, choose the most appropriate answer from the options given below:- NEET (UG) - 2025
- Structure of DNA and RNA
- A microscope has an objective of focal length \(f_o = 2\) cm and an eyepiece of focal length \(f_e = 4\) cm. The tube length of the microscope is \(L = 40\) cm. If the distance of distinct vision of eye is \(D = 25\) cm, the magnification in the microscope is:
- NEET (UG) - 2025
- Optical Instruments
- Two gases A and B are filled at the same pressure in separate cylinders with movable pistons of radii \(r_A\) and \(r_B\) respectively. On supplying an equal amount of heat to both the cylinders, their pressures remain constant and their pistons are displaced by 16 cm and 9 cm respectively. If the change in their internal energies is the same, then the ratio \(r_A / r_B\) is:
- NEET (UG) - 2025
- Thermodynamics
View More Questions
Concepts Used:
Pteridophytes
Pteridophytes are the first terrestrial vascular plants. Carolus Linnaeus classified them under the group cryptogamae. Pteridophytes occupy a transitional position between bryophytes and spermatophytes.
For Example, Silver fern, Equisetum, Selaginella
The general characteristics of Pteridophytes are:
- They are seedless.
- They are multicellular.
- They reproduce through spores.
- They are independent and free-living organisms.
- They have a well-differentiated plant body into root, stem and leaves.
Classification of Pteridophytes:
Life Cycle of Pteridophyta:
