SENIOR ELEMENTARY TEACHER SET PAST PAPERS AND SYLLABUS
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
دو مینڈکوں کی آبادیوں میں ملاپ ہو سکتا ہے، لیکن جنین جلد مر جاتا ہے اور بالغ نہیں بنتا۔ یہ کس قسم کی تولیدی تنہائی ہے؟
Postzygotic isolation
Habitat isolation
Behavioral isolation
None of these
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Explanation
Reproductive isolation prevents successful breeding between species . It can occur before or after fertilization . Postzygotic isolation happens after zygote formation. It leads to non-viable or infertile offspring. It helps maintain species separation . Last verified on 20-05-2026
ایلوپیٹرک اسپیسیشن کے آغاز کے لیے کون سا واقعہ ضروری ہوتا ہے؟
Sudden mutation in all individuals
Increased gene flow between populations
Geographic separation that reduces gene flow
None of these
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Explanation
Speciation is the formation of new species. Allopatric speciation occurs due to physical separation. Populations become isolated from each other. Gene flow between them is reduced or stopped . Over time, they evolve into different species. Last verified on 20-05-2026
مندرجہ ذیل میں سے کون سا نظریہ لامارک کے ارتقاء کے نظریے سے سب سے کم مطابقت رکھتا ہے؟
Use and disuse of organs
Inheritance of acquired characteristics
Organisms change according to environmental needs
Random mutations appear before environment needs them
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Explanation
Jean-Baptiste Lamarck proposed an early theory of evolution. He believed organisms change according to need and environment . He explained evolution through use and disuse of organs . Acquired characteristics were thought to pass to offspring . Modern genetics later challenged many of his ideas. Last verified on 20-05-2026
مچھروں کی آبادی میں کچھ افراد کے پاس پہلے سے ایسا جین موجود تھا جو کیڑے مار دوا کے اثر کو کم کرتا تھا۔ بار بار اسپرے کے بعد وہ جین عام ہو گیا۔ اس تبدیلی کی بہترین وجہ کیا ہے؟
Natural selection acting on pre-existing variation
Genetic drift
Mutation after spraying
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Populations naturally contain genetic variation. Some individuals may already have resistant traits. Insecticide kills non-resistant mosquitoes. Resistant mosquitoes survive and reproduce more. Over time, the resistant gene becomes common. Last verified on 20-05-2026
The data was analysed, and the findings was reported.
The data were analysed, and the findings were reported.
The data were analysed, and the findings was reported.
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
“ Data ” is treated as plural here, so use were analysed . “ Findings ” is also plural , so use were reported . Last verified on 20-05-2026
نرم دل
ضدی
خوش مزاج
ایماندار
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Explanation
Obdurate means ضد کرنے والا
Last updated question NS on 09 MAY 2026
Significant
Lengthy
Delicate
None of these
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Explanation
Tenuous means نازک Delicate means نازک Last verified on 20-05-2026
Ruinous
Prolonged
Beneficial
None of the above
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Pernicious means نقصاندہ Beneficial means فائدہ مند Last verified on 11-05-2026
An, a
The, A
An, the
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
“ Honest ” starts with a silent h, so vowel sound → an honest teacher. “ University ” starts with consonant sound (yoo) → a university lecturer. Last verified on 20-05-2026
The seminar was postponed early due to rain.
The seminar is postponed early due to rain.
The seminar had been postponed early due to rain.
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Sentence is in simple past tense (postponed). Passive voice becomes was + past participle (postponed). “ The seminar ” becomes the subject in passive form. Last verified on 20-05-2026