ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What is an organism's genotype?

1. AThe alleles it carries for a trait
2. BThe traits that can be seen or measured
3. CThe number of cells in its body
4. DThe environment in which it lives

What is a model in science?

1. AA simplified representation of a real system
2. BAn exact copy that has no limitations
3. CThe control group of a study
4. DA single measurement from an experiment

What is transpiration?

1. AThe movement of sugars through the phloem to the roots
2. BThe loss of water vapour from the leaves of a plant
3. CThe growth of roots towards water
4. DThe taking in of CO₂ for photosynthesis

Lactose (milk sugar) is a disaccharide. Which two monosaccharides is it made of?

1. AGlucose and fructose
2. BGlucose and glucose
3. CGlucose and galactose
4. DFructose and galactose

Which kind of mutation can be passed on to a person's children?

1. AA mutation in a white blood cell during infection
2. BA mutation in a liver cell caused by alcohol
3. CA mutation in a skin cell caused by sunlight
4. DA mutation in a cell that forms eggs or sperm

What is an inversion mutation?

1. AA chromosome segment breaks off and is reattached the wrong way round
2. BA segment of a chromosome moves to a different, non-matching chromosome
3. CA whole extra chromosome is added to the cell
4. DA segment of a chromosome is lost completely

كيف تصبح مجموعة من البكتيريا مقاومة لمضاد حيوي؟

1. Aتتعلم كل بكتيريا مقاومة الدواء بعد تعرضها له
2. Bيجعل الجهاز المناعي للمريض البكتيريا مقاومة
3. Cتحمل قلة منها جينات مقاومة أصلًا، فتنجو من الدواء وتتكاثر
4. Dيصنع المضاد الحيوي عمدًا الطفرة التي تحتاج إليها البكتيريا بالضبط

People who carry one sickle cell allele are more resistant to malaria. Why is the allele common in regions where malaria is widespread?

1. AThe allele is dominant, so it spreads by itself
2. BNatural selection favours the heterozygotes there
3. CPeople with two sickle alleles are fully healthy there
4. DMalaria causes the sickle cell mutation directly