A o’simliklarning paydo bo’lishini b zamburug’larni ichki, tashq tuzilishini


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A 1,4,5 B 2,4,5 C 1,3,5 D 2,3,5

  1. Chang yo’lidagi generativ hujayra nechta sperma hosil qiladi (yopiq urug’lilarda)?

A o’simlik turiga bog’liq holda har xil sonda
B 1 ta C 2 ta D 4 ta

  1. Tuxum hujayradan (1), markaziy hujayradan (2), urug’kurtakchadan (3), urug’kurtak po’stidan (4) nima hosil bo’ladi?

a) urug’ b) endosperma c) urug’ po’sti d) murtak
A 1-d; 2-b; 3-d; 4-c; B 1-c; 2-d; 3-a; 4-c;
C 1-d; 2-b; 3-a; 4-d; D 1-d; 2-b; 3-a; 4-c;

  1. Turpning urug’kurtagidan nima rivojlanadi?

A meva B markaziy hujayra C urug’ D murtak

  1. Bitta urug’kurtakka ega o’simliklarni ko’rsating.

1) olcha 2) shaftoli 3) boychechak 4) lola
5) gilos 6) g’o’za
A 1,2,3 B 1,2,5 C 1,4,6 D 3,4,6

  1. Bir nechta urug’kurtakka ega o’simliklarni ko’rsating.

1) olcha 2) shaftoli 3) boychechak 4) lola
5) gilos 6) g’o’za
A 1,2,3 B 1,2,5 C 1,4,6 D 3,4,6

  1. Agar tugunchada ko’p urug’kurtak bo’lsa, …

A tugunchaga faqat bitta chang nayi o’sib kiradi, bir necha urug’li meva hosil bo’ladi
B tugunchaga faqat bitta chang nayi o’sib kiradi, bir urug’li meva hosil bo’ladi
C tugunchaga ko’plab chang naylari o’sib kiradi, bir urug’li meva hosil bo’ladi
D tugunchaga ko’plab chang naylari o’sib kiradi, bir necha urug’li meva hosil bo’ladi

  1. Spermalar gulning qaysi qismidan hosil bo’ladi?

A urug’chidan B gulqo’rg’ondan
C chang donachasidan D changchi va urug’chidan

  1. Dunyodagi eng yirik gulga xos bo’lgan xususiyatlarni belgilang.

1) 1918-yilda Sumatra orolidan topilgan 2) ilk bor o’simlikni doktor Arnold Tomas va Stafford Raffls uchratishgan 3) 1818-yilda Sumatra orolidan topilgan 4) ilk bor o’simlikni doktor Arnold va Tomas Stafford Raffls uchratishgan 5) diametri 5m keladi 6) gultojbarglarining qalinligi 1 sm keladi 7) diametri 1m keladi 8) gultojbarglarining qalinligi 5 sm keladi 9) rangi, poyasi va bargi yo’q 10) rangi, ildizi va bargi yo’q 11) qo’lansa hidli 12) boshqa o’simlikning uzun po’stlog’i ichiga kirib olib uning shirasi hisobiga yashaydi

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