Užduočių lapas tema Biologija slaugos stojamiesiems egzaminams su atsakymais

What does the enzyme DNA ligase do?

1. AIt cuts DNA at specific sites
2. BIt joins pieces of DNA together
3. CIt unwinds the DNA double helix
4. DIt makes RNA from a DNA template

Kas eksperimente yra nepriklausomasis kintamasis?

1. AVeiksnys, kurį tyrėjas sąmoningai keičia
2. BGrupė, kuri negauna jokio poveikio
3. CVeiksnys, kuris matuojamas kaip rezultatas
4. DVeiksnys, išlaikomas toks pat visose grupėse

How many strands does an RNA molecule usually have?

1. ATwo
2. BOne
3. CThree
4. DFour

Why does PCR use a DNA polymerase taken from bacteria that live in hot springs?

1. AIt copies RNA as well as DNA
2. BIt works only in the dark, like the bacteria it comes from
3. CIt makes the DNA strands stick together
4. DIt survives the high temperatures used to separate the strands

A woman with blood type O has a child with a man of type AB. Which blood types can their children have?

1. AA or B
2. BA, B, AB or O
3. CO only
4. DO or AB

In which part of the chloroplast do the light-dependent reactions happen?

1. AIn the stroma
2. BIn the cell wall
3. CIn the thylakoid membranes
4. DIn the outer membrane

A cell is 0,00002 m wide. Which value is equal to this width?

1. A2 µm
2. B200 µm
3. C20 µm
4. D0,2 mm

Kuris grafiko tipas geriausiai tinka parodyti, kaip paciento temperatūra kinta per 24 valandas?

1. ALinijinė diagrama
2. BMitybos tinklas
3. CPunneto kvadratas
4. DSkritulinė diagrama