Reproduction & Inheritance
1. This question has 3 part(s).
1.1. The following diagram shows events that may occur in the oviduct of a female mammal.
(i) Identify process R.
(1)
(ii) Describe the events that occur during process R.
(4)
1.2. (i) Name process T in the diagram at part (a).
(1)
(ii) Explain the importance of process T with reference to the diagram in part (a).
(2)
1.3. A liver cell of the house mouse (Mus musculus) contains 24 chromosomes.(i)
Which of the following best describes the chromosome number in the gametes?
☐ | A | The original parent cell contains 24 chromosomes, but this number decreases to 12 during meiosis I and II |
☐ | B | The original parent cell contains 12 pairs of chromosomes, but this number decreases to 12 during meiosis I |
☐ | C | The original parent cell contains 12 pairs of chromosomes and this number remains constant during mitosis |
☐ | D | The original parent cell contains 24 chromosomes, but this number decreases to 12 pairs during meiosis I |
Ai এর মাধ্যমে
১০ লক্ষ+ প্রশ্ন ডাটাবেজ
প্র্যাকটিস এর মাধ্যমে নিজেকে তৈরি করে ফেলো
উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
সারা দেশের শিক্ষার্থীদের মধ্যে নিজের অবস্থান যাচাই
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