1.Dễ
Which carbohydrate forms plant cell walls and acts as dietary fibre?
- ACellulose
- BGlycogen
- CLactose
- DGlucose
2.Dễ
What is the correct order of levels of organisation, from smallest to largest?
- ACell, organ, tissue, organism, organ system
- BCell, tissue, organ, organ system, organism
- COrgan, tissue, cell, organ system, organism
- DTissue, cell, organ, organism, organ system
3.Dễ
Bào quan nào tạo ra phần lớn ATP trong tế bào nhân thực?
- ABộ máy Golgi
- BLysosome
- CRibosome
- DTy thể
4.Trung bình
A cut in the skin heals as new skin cells fill the wound. Which process produces these cells?
- AMeiosis
- BFertilisation
- CMitosis
- DBinary fission
5.Trung bình
Why is the ABO blood group system an example of multiple alleles?
- ABlood type is controlled by many separate genes
- BEach person carries three different alleles of the ABO gene
- CThe gene is found on several chromosomes
- DThere are three alleles of the gene in the population
6.Trung bình
Human adult height varies across a smooth, continuous range rather than falling into a few separate groups. What is the best explanation?
- AIt is controlled by many genes and also affected by environment
- BIt is controlled by one gene with two alleles and full dominance
- CIt is controlled only by the environment
- DIt is an X-linked recessive trait
7.Khó
A human body cell has 46 chromosomes in G1. How many chromatids does it have at metaphase of mitosis?
- A23
- B184
- C92
- D46
8.Khó
At 100× total magnification, the field of view of a microscope is 2 mm wide. What is its width at 400×?
- A0,5 mm
- B2 mm
- C8 mm
- D0,2 mm
Đáp án
- 1. A · Cellulose
- 2. B · Cell, tissue, organ, organ system, organism
- 3. D · Ty thể
- 4. C · Mitosis
- 5. D · There are three alleles of the gene in the population
- 6. A · It is controlled by many genes and also affected by environment
- 7. C · 92
- 8. A · 0,5 mm
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