Phiếu bài tập Sinh học cho kỳ thi đầu vào điều dưỡng có đáp án

Mục đích của nhóm đối chứng là gì?

1. ALàm cho thí nghiệm kết thúc sớm hơn
2. BThay thế nhu cầu có giả thuyết
3. CCung cấp mốc cơ sở để so sánh với nhóm được xử lý
4. DNhận liều xử lý lớn nhất có thể đang được thử nghiệm

What does the polymerase chain reaction (PCR) do?

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

What is a zygote?

1. AA body cell that has just completed its first round of mitosis
2. BA haploid cell made by meiosis
3. CAn unfertilised egg cell
4. DThe diploid cell formed when a sperm fertilises an egg

Which list puts these human energy sources in order from fastest to use to longest-lasting store?

1. AGlycogen, then ATP, then fat
2. BFat, then glycogen, then ATP
3. CATP, then glycogen, then fat
4. DATP, then fat, then glycogen

Which statement about identical and non-identical twins is correct?

1. ABoth kinds of twin always share all of their genes
2. BIdentical twins come from one zygote; non-identical twins come from two
3. CIdentical twins come from two eggs that are fertilised by a single sperm
4. DNon-identical twins come from one zygote that splits in two

Trình tự nào bổ sung với mạch DNA A-T-G-C-C-A?

1. AU-A-C-G-G-U
2. BT-A-C-G-G-T
3. CG-C-A-T-T-G
4. DA-T-G-C-C-A

A drug lowered blood pressure in a study of 20 men aged 40 to 50. Why might the result not apply to women over 70?

1. AThe results were too precise to be trusted
2. BThe study had a dependent variable
3. CThe sample did not represent that group
4. DBlood pressure cannot be measured in older women

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