NEET Test Series from KOTA - 10 Papers In MS WORD
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BIOXI03: PLANT KINGDOM
332106
Assertion : Spirogyra shows haplontic life cycle. Reason : Zygotic meiosis occurs in Spirogyra .
1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Life cycle characterized by a haploid thallus and zygotic meiosis is called haplontic life cycle. It is called as haplobiontic because only a single type of free living individual is involved in the life cycle and Spirogyra shows haplontic life cycle and therefore, it also shows zygotic nucleus.
BIOXI03: PLANT KINGDOM
332107
The haploid plant body produces _______ and is referred to as _______
1 Spores, sporophyte
2 Spore, gametophyte
3 Gametes, gametophyte
4 Gametes, sporophyte
Explanation:
The haploid plant body produces haploid gametes and is referred to as the gametophyte.
BIOXI03: PLANT KINGDOM
332108
The species which follow following life cycle pattern have_
1 Dominant gametophytic phase
2 Dominant sporophytic phase
3 Both 1 and 2
4 Data is insufficient.
Explanation:
Given diagram represents a haplo-diplontic life cycle. We cannot determine which out of the two – gametophyte/sporophyte is the main plant body.
BIOXI03: PLANT KINGDOM
332109
In diplontic life cycle gametogenesis (from gametophyte) takes place by
1 Mitosis
2 Meiosis
3 Both (1) and (2)
4 Neither mitosis nor meiosis
Explanation:
In diplontic life cycle, haploid gametophyte divides by the process of mitosis to produce haploid gametes.
332106
Assertion : Spirogyra shows haplontic life cycle. Reason : Zygotic meiosis occurs in Spirogyra .
1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Life cycle characterized by a haploid thallus and zygotic meiosis is called haplontic life cycle. It is called as haplobiontic because only a single type of free living individual is involved in the life cycle and Spirogyra shows haplontic life cycle and therefore, it also shows zygotic nucleus.
BIOXI03: PLANT KINGDOM
332107
The haploid plant body produces _______ and is referred to as _______
1 Spores, sporophyte
2 Spore, gametophyte
3 Gametes, gametophyte
4 Gametes, sporophyte
Explanation:
The haploid plant body produces haploid gametes and is referred to as the gametophyte.
BIOXI03: PLANT KINGDOM
332108
The species which follow following life cycle pattern have_
1 Dominant gametophytic phase
2 Dominant sporophytic phase
3 Both 1 and 2
4 Data is insufficient.
Explanation:
Given diagram represents a haplo-diplontic life cycle. We cannot determine which out of the two – gametophyte/sporophyte is the main plant body.
BIOXI03: PLANT KINGDOM
332109
In diplontic life cycle gametogenesis (from gametophyte) takes place by
1 Mitosis
2 Meiosis
3 Both (1) and (2)
4 Neither mitosis nor meiosis
Explanation:
In diplontic life cycle, haploid gametophyte divides by the process of mitosis to produce haploid gametes.
332106
Assertion : Spirogyra shows haplontic life cycle. Reason : Zygotic meiosis occurs in Spirogyra .
1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Life cycle characterized by a haploid thallus and zygotic meiosis is called haplontic life cycle. It is called as haplobiontic because only a single type of free living individual is involved in the life cycle and Spirogyra shows haplontic life cycle and therefore, it also shows zygotic nucleus.
BIOXI03: PLANT KINGDOM
332107
The haploid plant body produces _______ and is referred to as _______
1 Spores, sporophyte
2 Spore, gametophyte
3 Gametes, gametophyte
4 Gametes, sporophyte
Explanation:
The haploid plant body produces haploid gametes and is referred to as the gametophyte.
BIOXI03: PLANT KINGDOM
332108
The species which follow following life cycle pattern have_
1 Dominant gametophytic phase
2 Dominant sporophytic phase
3 Both 1 and 2
4 Data is insufficient.
Explanation:
Given diagram represents a haplo-diplontic life cycle. We cannot determine which out of the two – gametophyte/sporophyte is the main plant body.
BIOXI03: PLANT KINGDOM
332109
In diplontic life cycle gametogenesis (from gametophyte) takes place by
1 Mitosis
2 Meiosis
3 Both (1) and (2)
4 Neither mitosis nor meiosis
Explanation:
In diplontic life cycle, haploid gametophyte divides by the process of mitosis to produce haploid gametes.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
BIOXI03: PLANT KINGDOM
332106
Assertion : Spirogyra shows haplontic life cycle. Reason : Zygotic meiosis occurs in Spirogyra .
1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
Explanation:
Life cycle characterized by a haploid thallus and zygotic meiosis is called haplontic life cycle. It is called as haplobiontic because only a single type of free living individual is involved in the life cycle and Spirogyra shows haplontic life cycle and therefore, it also shows zygotic nucleus.
BIOXI03: PLANT KINGDOM
332107
The haploid plant body produces _______ and is referred to as _______
1 Spores, sporophyte
2 Spore, gametophyte
3 Gametes, gametophyte
4 Gametes, sporophyte
Explanation:
The haploid plant body produces haploid gametes and is referred to as the gametophyte.
BIOXI03: PLANT KINGDOM
332108
The species which follow following life cycle pattern have_
1 Dominant gametophytic phase
2 Dominant sporophytic phase
3 Both 1 and 2
4 Data is insufficient.
Explanation:
Given diagram represents a haplo-diplontic life cycle. We cannot determine which out of the two – gametophyte/sporophyte is the main plant body.
BIOXI03: PLANT KINGDOM
332109
In diplontic life cycle gametogenesis (from gametophyte) takes place by
1 Mitosis
2 Meiosis
3 Both (1) and (2)
4 Neither mitosis nor meiosis
Explanation:
In diplontic life cycle, haploid gametophyte divides by the process of mitosis to produce haploid gametes.
