ใบงาน ชีววิทยาสำหรับข้อสอบเข้าพยาบาล พร้อมเฉลย

What does phloem carry in a plant?

1. AChlorophyll to the stem
2. BSugars made in the leaves
3. CCarbon dioxide from the air
4. DWater from the roots only

What is an ecosystem?

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

What does the polymerase chain reaction (PCR) do?

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

Why can an electron microscope show more detail than a light microscope?

1. AElectron microscopes use living cells only
2. BElectron microscopes use stronger glass lenses
3. CElectrons are brighter than light
4. DElectrons have a much shorter wavelength than light

ผลผลิตของการหายใจระดับเซลล์แบบใช้ออกซิเจนคืออะไร

1. Aกรดแลกติกและออกซิเจน
2. Bกลูโคสและออกซิเจน
3. Cคาร์บอนไดออกไซด์ น้ำ และ ATP
4. Dแป้งและน้ำ

Golden rice was genetically modified to make beta-carotene. What is the aim?

1. ATo make the rice grow faster in cold climates
2. BTo increase the protein content of the rice
3. CTo make the rice resistant to all insects
4. DTo help prevent vitamin A deficiency

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 linked and are rarely separated by crossing over
2. BThe genes are on different chromosomes and assort independently
3. CBoth genes show incomplete dominance
4. DA frameshift mutation happened in both genes

Why can O-negative red blood cells be given to patients of almost any blood type in an emergency?

1. AThey carry all of the A, B and RhD antigens
2. BThey have no haemoglobin to react with
3. CTheir plasma contains anti-A and anti-B antibodies
4. DThey carry no A, B or RhD antigens