Scheda di esercizi di Biologia per i test di ammissione a infermieristica con soluzioni

What is true of a recessive allele?

1. AIts trait shows only when two copies are present
2. BIt is found only on the X chromosome
3. CIt is always harmful to the organism
4. DIts trait shows whenever one copy is present

Which organelle breaks down fatty acids and hydrogen peroxide?

1. ARibosome
2. BChloroplast
3. CCentriole
4. DPeroxisome

What is a heterotroph?

1. AAn organism that lives only in water
2. BAn organism that makes its own food by photosynthesis
3. CAn organism that gets its food from other organisms
4. DAn organism with no cells

Which stage of aerobic respiration produces the most ATP?

1. AGlycolysis in the cytoplasm
2. BThe Krebs cycle in the matrix
3. CThe electron transport chain
4. DFermentation

Where does the oxygen released by photosynthesis come from?

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

A cell has a nucleus and mitochondria but no cell wall and no chloroplasts. What kind of cell is it most likely to be?

1. AA fungal cell
2. BA plant cell
3. CA bacterial cell
4. DAn animal cell

Una pianta AaBb viene incrociata con una pianta aabb. I geni si assortiscono indipendentemente. Quale rapporto fenotipico è atteso nella prole?

1. A1 : 1 : 1 : 1
2. B3 : 1
3. C1 : 2 : 1
4. D9 : 3 : 3 : 1

Two parents who both have a genetic condition have a child who does not. Assuming a single gene, what inheritance pattern does this show?

1. AAutosomal dominant, with both parents heterozygous
2. BAutosomal recessive, with both parents homozygous
3. CX-linked recessive, with the father as a carrier
4. DAutosomal recessive, with both parents heterozygous