Užduočių lapas tema Biologija slaugos stojamiesiems egzaminams su atsakymais

What is the aim of gene therapy?

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

What is natural selection?

1. AOrganisms changing their genes when they need to
2. BHumans breeding plants for useful traits
3. CAnimals choosing which mates they like best, so traits change at random
4. DIndividuals with helpful traits survive and reproduce more

What is the correct order of the phases of mitosis?

1. ATelophase, anaphase, metaphase, prophase
2. BProphase, anaphase, metaphase, telophase
3. CMetaphase, prophase, anaphase, telophase
4. DProphase, metaphase, anaphase, telophase

What is the function of the pores in the nuclear envelope?

1. AThey make ribosomal RNA for the cell
2. BThey let chromosomes leave the nucleus to be copied
3. CThey let molecules such as mRNA pass in and out
4. DThey attach the nucleus to the cell membrane

Why must human gametes be haploid?

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

Which body system works with the respiratory system to deliver oxygen to body cells?

1. AThe digestive system
2. BThe circulatory system
3. CThe urinary system
4. DThe skeletal system

Why do cells get far more ATP from glucose when oxygen is present than when it is absent?

1. AWithout oxygen only glycolysis runs, giving a net of 2 ATP per glucose
2. BWithout oxygen, glucose cannot enter the cell or be broken down at all
3. COxygen itself is converted into ATP in the mitochondria
4. DWithout oxygen the Krebs cycle runs faster but makes less ATP

iRNR kodonas yra AUG. Koks yra jį atitinkančios tRNR antikodonas?

1. ATAC
2. BUAC
3. CAUG
4. DGUA