ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

What is a trait that is controlled by many genes called?

1. AA sex-linked trait
2. BA recessive trait
3. CA polygenic trait
4. DA codominant trait

What are stomata?

1. ATubes that carry water up the stem
2. BHairs on roots that absorb minerals
3. CSmall pores in leaves that allow gas exchange
4. DGreen structures in the leaf that store starch

What is an ecosystem?

1. AThe living things in an area and their non-living surroundings
2. BAll the members of one species in an area
3. CThe weather in a particular region
4. DA single organism together with all of its organs and tissues

Which list puts these human energy sources in order from fastest to use to longest-lasting store?

1. AATP, then glycogen, then fat
2. BFat, then glycogen, then ATP
3. CGlycogen, then ATP, then fat
4. DATP, then fat, then glycogen

Which statement about Archaea is correct?

1. AThey are a type of virus
2. BThey are multicellular plants
3. CThey are prokaryotes, and many live in extreme environments
4. DThey are eukaryotes that have a nucleus and membrane-bound organelles

What happens in the lytic cycle of a virus?

1. AThe virus makes many copies in the host cell, which then bursts
2. BThe virus divides by binary fission outside the cell
3. CThe viral DNA joins the host DNA and stays inactive for a long time
4. DThe host cell makes antibodies against the virus

Which statement correctly compares DNA replication and transcription?

1. ABoth take place on ribosomes in the cytoplasm
2. BReplication copies all the DNA; transcription copies one gene
3. CBoth use thymine and deoxyribose in the new strand
4. DReplication makes RNA from DNA; transcription makes DNA from RNA

A human body cell has 46 chromosomes in G1. How many chromatids does it have at metaphase of mitosis?

1. A92
2. B184
3. C46
4. D23