Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

What is the aim of gene therapy?

1. ATo treat a disease by adding a working copy of a faulty gene
2. BTo change the patient's blood type
3. CTo remove all the genes from a patient's cells
4. DTo give a patient antibiotics through a vein to kill a virus

Which enzyme unwinds the DNA double helix and separates the two strands for copying?

1. AHelicase
2. BLigase
3. CLipase
4. DAmylase

What are the bacteria called that normally live on the skin and in the gut without causing disease?

1. APrions
2. BVectors
3. CPathogens
4. DNormal flora

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

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

Why does each type of virus infect only certain kinds of cells?

1. AIt can only enter cells that are dividing by meiosis at that time
2. BIt can only enter cells that have no nucleus
3. CIt must attach to specific receptor proteins on the cell surface
4. DIt must find cells with the same DNA as its own

In evolution, what does an organism's fitness mean?

1. AHow strong and fast the organism is compared with others
2. BHow many offspring it leaves that survive and reproduce
3. CHow large the organism grows
4. DHow long the organism lives

Why are organ transplant patients usually given drugs that suppress the immune system?

1. AThe drugs change the donor organ's DNA so that it matches the patient
2. BTheir immune system would recognise the donor cells as foreign
3. CThe donor organ contains bacteria that must be killed
4. DThe drugs help the new organ to grow larger

Aşağıdakilerden hangisi sınanabilir bir hipotezdir?

1. ABitkilere bakım veren insanlar su vermelidir
2. BBitkiler daha fazla ışık alırsa daha uzun büyür
3. CBitkiler, insanlar her gün onlarla konuşunca daha mutlu ve sakin hisseder
4. DBitkiler canlıların en güzelidir