ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

How does a vaccine protect a person?

1. AIt trains the immune system with a harmless form of a pathogen
2. BIt blocks the pathogen from entering the nose
3. CIt replaces the person's white blood cells with stronger ones
4. DIt kills all bacteria in the body straight away

Which protein carries oxygen in red blood cells?

1. AKeratin
2. BCollagen
3. CHaemoglobin
4. DInsulin

Which codon signals the start of translation in most genes?

1. AUGA
2. BUAG
3. CAUG
4. DUAA

Why do chromosomes condense into short, thick shapes before mitosis?

1. ASo that they can leave through the nuclear pores
2. BSo that genes can be transcribed more easily
3. CSo they can be moved apart without tangling or breaking
4. DSo that they can be copied more quickly

A patient's blood type is B positive. What does this mean?

1. ATheir red cells carry no antigens at all
2. BTheir red cells carry the B antigen and the RhD antigen
3. CTheir red cells carry the A antigen and no RhD antigen
4. DTheir plasma contains anti-B antibodies

An organism is multicellular, makes its own food by photosynthesis and has cell walls of cellulose. Which kingdom does it belong to?

1. ABacteria
2. BAnimals
3. CFungi
4. DPlants

Ignoring crossing over, how many different combinations of chromosomes can one person's gametes have because of independent assortment?

1. A23², about 529
2. B2 × 23, which is 46
3. C2²³, about 8 million
4. D46, one for each chromosome

طفرة نقطية تغيّر الكودون GAA إلى GAG، وكلاهما يشفّر لحمض الغلوتاميك. ما نوع هذه الطفرة؟

1. Aطفرة صامتة
2. Bطفرة إزاحة الإطار
3. Cطفرة غير ذات معنى (لا معنى لها، nonsense)
4. Dحذف صبغي