ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

What is a mutagen?

1. AA protein that repairs damaged DNA
2. BSomething that can cause changes in DNA
3. CAn enzyme that copies DNA
4. DA cell that divides without control

Which molecules, made by immune cells, bind to specific antigens?

1. AEnzymes
2. BAntibodies
3. CHormones
4. DPhospholipids

Which of these diseases is caused by a virus?

1. AAthlete's foot
2. BMalaria
3. CTuberculosis
4. DInfluenza

ระหว่างออกกำลังกายหนัก เซลล์กล้ามเนื้อขาดออกซิเจน เซลล์จะสร้างสิ่งใดจากกลูโคสแทน

1. Aไกลโคเจนและน้ำ
2. BATP จำนวนมากและออกซิเจน
3. Cกรดแลกติก (แลกเทต) และ ATP จำนวนเล็กน้อย
4. Dแอลกอฮอล์และคาร์บอนไดออกไซด์

Why must human gametes be haploid?

1. ASo that the zygote has twice the normal number of chromosomes
2. BSo that the gametes can make more proteins
3. CSo that the zygote has the normal number of 46 chromosomes
4. DSo that the gametes can divide quickly by mitosis

In a pedigree, a trait appears in every generation, and every affected child has at least one affected parent. Which inheritance pattern is most likely?

1. AAutosomal recessive
2. BX-linked recessive
3. CAutosomal dominant
4. DA new mutation in each generation

A patient is given a large volume of hypotonic IV fluid too quickly. What is the most likely effect on the patient's cells?

1. ANothing changes, because cells are not affected by IV fluid
2. BWater moves into the cells, and they swell
3. CWater moves out of the cells, and they shrink
4. DSalt moves into the cells, and they burst

A restriction enzyme cuts at three sites in a linear piece of DNA. How many fragments are produced?

1. A4
2. B2
3. C3
4. D6