NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

KINGDOM PLANTAE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Spore mother cell in Bryophyte is
A
Haploid
B
Diploid
C
triploid
D
tetraploid
Explanation: 

Detailed explanation-1: -In bryophytes, the sporophyte is diploid. It contains spore mother cells (2n) which undergo meiosis to form haploid spores.

Detailed explanation-2: -spore mother cell (sporocyte) A diploid cell that gives rise to four haploid spores by meiosis.

Detailed explanation-3: -A bryophyte spore is haploid. A haploid cell has one set of chromosomes, a diploid cell has two. In humans, the egg and sperm cells are haploid.

Detailed explanation-4: -The sporophyte is diploid, but the spores are haploid. The spores disperse and germinate into new gametophytes, repeating the process (see Figure 1.4.

Detailed explanation-5: -The sporophytes (the diploid form of the plant) of bryophytes are unbranched, producing a single spore-producing capsule (sporangium). Moreover, the sporophytes are dependent on the gametophyte for nutrition and develops within the female sex organ (archegonia).

There is 1 question to complete.