Cevaplı Hemşirelik giriş sınavları için biyoloji çalışma kâğıdı

What is a chromosomal deletion?

1. AA piece of chromosome that is turned around
2. BAn extra copy of a whole chromosome
3. CThe swap of a single DNA base
4. DThe loss of a piece of a chromosome

Which gas do plants take in from the air for photosynthesis?

1. AHydrogen
2. BOxygen
3. CCarbon dioxide
4. DNitrogen

Which of these diseases is caused by a virus?

1. AInfluenza
2. BAthlete's foot
3. CTuberculosis
4. DMalaria

Dolly the sheep was cloned by putting the nucleus of an adult body cell into an egg cell whose nucleus had been removed. Whose nuclear DNA did Dolly have?

1. AThe sheep that carried the pregnancy
2. BThe sheep that gave the body cell nucleus
3. CThe sheep that gave the egg cell
4. DAn equal mix of all three sheep

Why do plants wilt when the soil around their roots becomes very salty?

1. AThe roots take in too much water
2. BWater leaves the root cells by osmosis
3. CSalt blocks sunlight from reaching the leaves
4. DSalt makes the root cells swell and burst

Where does the oxygen released by photosynthesis come from?

1. AFrom chlorophyll that is used up
2. BFrom carbon dioxide molecules that are split
3. CFrom water molecules that are split
4. DFrom glucose that is broken down

Two genes lie very close together on the same chromosome. In a test cross, most offspring look like the parents instead of the expected 1:1:1:1 ratio. Why?

1. AThe genes are on different chromosomes and assort independently
2. BBoth genes show incomplete dominance
3. CA frameshift mutation happened in both genes
4. DThe genes are linked and are rarely separated by crossing over

Cyanide stops mitochondria from making ATP. Which process in the affected cells would stop first?

1. APumping of Na⁺ and K⁺ by the sodium-potassium pump
2. BOsmosis of water across the membrane
3. CSimple diffusion of oxygen into the cell
4. DFacilitated diffusion of glucose down its gradient