Biologia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

What is a haploid cell?

1. AA cell with two sets of chromosomes
2. BA cell with no nucleus
3. CA cell with one set of chromosomes
4. DA cell with an extra chromosome

What are stomata?

1. AGreen structures in the leaf that store starch
2. BSmall pores in leaves that allow gas exchange
3. CHairs on roots that absorb minerals
4. DTubes that carry water up the stem

What is phagocytosis?

1. AA cell taking in small droplets of fluid
2. BA cell dividing into two identical daughter cells
3. CA cell engulfing large particles such as bacteria
4. DA cell releasing hormones by exocytosis

What is an inversion mutation?

1. AA segment of a chromosome is lost completely
2. BA segment of a chromosome moves to a different, non-matching chromosome
3. CA whole extra chromosome is added to the cell
4. DA chromosome segment breaks off and is reattached the wrong way round

To insert a human gene into a bacterial plasmid, scientists cut both the gene and the plasmid with the same restriction enzyme. Why?

1. ASo both pieces become exactly the same length
2. BSo the gene is turned into RNA
3. CSo the plasmid loses all its genes
4. DSo the cut ends match and can join together

Które wiązanie łączy aminokwasy w białku?

1. AWiązanie estrowe
2. BWiązanie glikozydowe
3. CWiązanie wodorowe między zasadami
4. DWiązanie peptydowe

Ignoring crossing over, how many different combinations of chromosomes can one person's gametes have because of independent assortment?

1. A23², about 529
2. B2 × 23, which is 46
3. C46, one for each chromosome
4. D2²³, about 8 million

A pre-mRNA is 3000 bases long, and 1200 bases of introns are removed. If all remaining bases code for amino acids, what is the largest number of amino acids in the protein?

1. A400
2. B600
3. C1800
4. D1000