ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What does DNA replication produce?

1. AOne mRNA molecule
2. BTwo identical DNA molecules
3. CFour different DNA molecules
4. DA new protein

إلى أي مجموعة من الجزيئات الحيوية تنتمي معظم الإنزيمات؟

1. Aالبروتينات
2. Bالكربوهيدرات
3. Cالمعادن
4. Dالدهون

Which of these hormones is a steroid?

1. ATestosterone
2. BGrowth hormone
3. CInsulin
4. DGlucagon

A deletion removes exactly three bases, forming one whole codon, from the middle of a gene. What is the most likely result?

1. AThe protein becomes three times longer
2. BEvery amino acid after the deletion is changed to a new one
3. CNo protein can be made at all
4. DThe protein lacks one amino acid but the rest is unchanged

Which stage of aerobic respiration produces the most ATP?

1. AGlycolysis in the cytoplasm
2. BThe electron transport chain
3. CFermentation
4. DThe Krebs cycle in the matrix

A thermometer gives readings of 36,1, 36,1 and 36,2 °C for a water bath that is really at 37,0 °C. How are these readings best described?

1. ANeither accurate nor precise
2. BPrecise but not accurate
3. CAccurate but not precise
4. DBoth accurate and precise

A cell is 0,00002 m wide. Which value is equal to this width?

1. A20 µm
2. B200 µm
3. C0,2 mm
4. D2 µm

يقرأ خيط DNA القالب 3'-TACGGA-5'. ما mRNA المصنوع منه؟

1. A5'-UACGGA-3'
2. B5'-AUGCCU-3'
3. C5'-ATGCCT-3'
4. D5'-TACGGA-3'