D) a-1,10,11,13; b-10,13,14,6; c-11,1,10,4,14.
238.Xerbatseum arxesporasidagi (l), arxesporaning I meyoz
(2) va II meyoz (3) bo’linishidan keyin hosil bo’lgan
hujayralardagi xromosoma (a) va xromatidalar (b) sonini
ko'rsating.
A) l-a-52, b-52; 2-a-26, b-52; 3-a-26, b-26
B) l-a-26, b-26; 2-a-13, b-13; 3-a-13, b-13
C) l-a-26, b-52; 2-a-13, b-26; 3-a-13, b-26
D) I -a-26, b-26; 2-a-13, b-26; 3-a-13, b-13
239.Yurak qorinchasida arterial (a), venoz (b) va aralash (c)
qonga ega bo’lgan tashqi (I), ichki (II) urug’lanish xos bo’lgan
organizmlarni ko’rsating.
1-ugor; 2-treska; 3-baqachanoq; 4- dengiz tulkisi;
5- tikandum; 6-dreysena; 7-okun; 8-povituxa; 9-gekkon;
10-gatteriya; 11-kvaksha; 12-manta.
A) I-a-6 b-1,2,7 c-8,11; II-a-3 b-4,5,12 c-9,10,11
B) I-a-3 b-1,2,7 c-8,11; II-a-6 b-4,5,12 c-9,10
C) I-b-1,2,3,7 c-8,11; II-a-6 b-4,5,12 c-9,10
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