Lembaran kerja Biologi untuk peperiksaan kemasukan kejururawatan dengan jawapan

What is true of a recessive allele?

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

Apakah tujuan kumpulan kawalan?

1. AUntuk memberikan asas perbandingan dengan kumpulan yang dirawat
2. BUntuk menggantikan keperluan hipotesis
3. CUntuk menerima dos rawatan yang diuji sebesar mungkin
4. DUntuk menjadikan eksperimen selesai lebih cepat

What does the polymerase chain reaction (PCR) do?

1. AIt turns RNA into protein
2. BIt cuts DNA at specific sequences
3. CIt separates proteins by their charge
4. DIt makes many copies of a piece of DNA

What happens when a ribosome reaches a stop codon on the mRNA?

1. AA special amino acid is added to end the chain
2. BThe ribosome goes back to the start codon
3. CTranslation ends and the protein is released
4. DThe mRNA is copied back into DNA

HIV is a retrovirus. What does its enzyme reverse transcriptase do?

1. AIt makes proteins from the virus's DNA
2. BIt makes RNA from the host's DNA
3. CIt makes DNA from the virus's RNA
4. DIt breaks down the host's ribosomes

What is the role of ribosomal RNA (rRNA)?

1. AIt brings single amino acids to the ribosome
2. BIt stores genetic information in the nucleus
3. CIt carries the code from DNA to the ribosome
4. DIt forms part of the ribosome and helps join amino acids

A single-celled microbe has a nucleus and a cell wall made of chitin, and it reproduces by budding. What is it most likely to be?

1. AA bacterium
2. BA virus
3. CA yeast
4. DAn amoeba

A new infectious agent passes through filters that trap bacteria, does not grow on nutrient agar and multiplies only inside living cells. What is it most likely to be?

1. AA virus
2. BA bacterium
3. CA fungus
4. DA protozoan