ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What are stomata?

1. ATubes that carry water up the stem
2. BSmall pores in leaves that allow gas exchange
3. CHairs on roots that absorb minerals
4. DGreen structures in the leaf that store starch

What does the polymerase chain reaction (PCR) do?

1. AIt turns RNA into protein
2. BIt cuts DNA at specific sequences
3. CIt separates proteins by their charge
4. DIt makes many copies of a piece of DNA

What are restriction enzymes?

1. AEnzymes that join amino acids into proteins
2. BEnzymes that cut DNA at specific base sequences
3. CEnzymes that copy RNA into DNA
4. DEnzymes that digest fats in the intestine

Which body system works with the respiratory system to deliver oxygen to body cells?

1. AThe skeletal system
2. BThe urinary system
3. CThe digestive system
4. DThe circulatory system

A tall pea plant could be TT or Tt. Which cross will best reveal its genotype?

1. ACross it with a TT plant
2. BCross it with a short (tt) plant
3. CCross it with another tall plant
4. DLet it grow for a longer time

A bone marrow transplant can treat some blood cancers. Why does it work?

1. AThe transplant replaces the patient's bones
2. BThe donor stem cells produce new, healthy blood cells
3. CThe donor red cells divide to make more red cells
4. DThe donor marrow contains antibiotics that kill cancer

كيف تصبح مجموعة من البكتيريا مقاومة لمضاد حيوي؟

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

A man with an X-linked recessive disorder (XʰY) has children with a woman who has two normal alleles (XᴴXᴴ). What is expected among their children?

1. AHalf of the sons and half of the daughters are affected
2. BAll daughters are carriers, and no sons are affected
3. CAll sons are affected, and no daughters are carriers
4. DAll daughters are affected, and all sons are carriers