ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What is a sister chromatid?

1. AOne of the two sex chromosomes
2. BA small ring of DNA found in bacteria
3. CA chromosome that is inherited from the mother only, never the father
4. DOne of two identical copies of a chromosome joined at the centromere

What does gel electrophoresis separate?

1. ACells by their shape
2. BBlood into plasma and cells
3. CChromosomes by their colour
4. DDNA fragments by size

What is peer review?

1. ARepeating your own experiment many times
2. BExperts checking a study before it is published
3. CReading a textbook to learn a topic
4. DAsking patients for their opinion of a treatment

لُقّح نبات أزهاره حمراء مع نبات أزهاره بيضاء، وكانت جميع الأفراد الناتجة ذات أزهار وردية. ماذا يبيّن ذلك؟

1. Aالسيادة المشتركة
2. Bالسيادة التامة
3. Cالسيادة غير التامة
4. Dصفة مرتبطة بالجنس

Why do plants wilt when the soil around their roots becomes very salty?

1. AWater leaves the root cells by osmosis
2. BSalt makes the root cells swell and burst
3. CSalt blocks sunlight from reaching the leaves
4. DThe roots take in too much water

A woman with blood type O has a child with a man of type AB. Which blood types can their children have?

1. AA, B, AB or O
2. BO only
3. CA or B
4. DO or AB

A leaf with green and white areas is kept in light and then tested with iodine. Only the green areas turn blue-black. What does this show?

1. ALight is not needed for photosynthesis
2. BChlorophyll is needed for photosynthesis
3. CWhite areas store more starch than green areas
4. DIodine destroys chlorophyll in the leaf

A green plant is kept in a sealed jar in complete darkness for a day. What happens to the carbon dioxide level in the jar?

1. AIt rises, because the plant respires but cannot photosynthesise
2. BIt falls, because plants take in more CO₂ when they respire in the dark
3. CIt falls, because the plant keeps photosynthesising
4. DIt stays the same, because plants do not respire