1.やさしい
How many millilitres are in one litre?
- A100
- B10
- C1000
- D10 000
2.やさしい
What does DNA replication produce?
- AFour different DNA molecules
- BOne mRNA molecule
- CA new protein
- DTwo identical DNA molecules
3.やさしい
What is the R group of an amino acid?
- AThe peptide bond between two amino acids
- BThe carboxyl group at one end
- CThe amino group that is shared by all amino acids
- DThe side chain that differs between amino acids
4.ふつう
In disease spread, what is a vector?
- AA blood test used to detect antibodies
- BA medicine that destroys a pathogen in the body
- CAn organism that carries a pathogen between hosts
- DThe first person to catch a disease
5.ふつう
Where does the Krebs (citric acid) cycle take place in a eukaryotic cell?
- AOn the rough endoplasmic reticulum
- BIn the mitochondrial matrix
- CIn the nucleus
- DIn the cytoplasm
6.ふつう
Which stage of aerobic respiration produces the most ATP?
- AThe electron transport chain
- BGlycolysis in the cytoplasm
- CFermentation
- DThe Krebs cycle in the matrix
7.むずかしい
Plasmids with an ampicillin-resistance gene are mixed with bacteria, which are then spread on a plate containing ampicillin. Why do only a few colonies grow?
- AOnly the bacteria that took up the plasmid can survive
- BThe plasmid kills the bacteria that do not grow
- CAll the bacteria die, and the colonies are fungi
- DAmpicillin makes some bacteria take up the plasmid
8.むずかしい
A karyotype shows 45 chromosomes, with a single X chromosome and no Y. Which condition is this?
- AA typical male karyotype
- BKlinefelter syndrome
- CDown syndrome
- DTurner syndrome
解答
- 1. C · 1000
- 2. D · Two identical DNA molecules
- 3. D · The side chain that differs between amino acids
- 4. C · An organism that carries a pathogen between hosts
- 5. B · In the mitochondrial matrix
- 6. A · The electron transport chain
- 7. A · Only the bacteria that took up the plasmid can survive
- 8. D · Turner syndrome
ステップごとの詳しい解答:このトピックは examproblems.com で練習できます。