Vietnam: What are the short answer questions for review for the 1st mid-semester test of 12th-grade Biology? Who has the power to issue the internal regulations of secondary schools?

What are the short answer questions for review for the 1st mid-semester test of 12th-grade Biology in Vietnam?

Below are some short answer questions for review for the 1st mid-semester test of 12th-grade Biology in Vietnam:

Question 1: A gene segment has the nucleotide sequence on one polynucleotide chain as follows: 3’ – ATG - TAC - CGT - AGG - XXX - 5’ Calculate the number of hydrogen bonds in the gene segment above. Question 2: With 3 types of ribonucleotides A, U, and G, how many codons can be formed to code for amino acids in a polypeptide chain? Question 3: A gene mutation occurred in the structure of the lac operon causing the structural genes not to be expressed even when lactose is present or absent in the environment. In which region of the lac operon did this gene mutation occur? Question 4: An organism has the genotype AaBbDd. If during meiosis, 10% of the cells experience nondisjunction of the chromosome pair carrying the Bb genes in meiosis I, with meiosis II occurring normally, and other chromosome pairs segregating normally, what is the ratio of mutant gametes carrying the ABbD genotype? Question 5: According to Mendel's law of independent assortment, theoretically how many percent of offspring individuals will display a dominant phenotype in 3 out of 4 traits when an AaBbCcDd plant performs self-pollination? Question 6: The fruit weight trait of a plant species shows additive gene interaction, with gene pairs sorting independently. Given a plant heterozygous for all gene pairs self-pollinates, the F1 generation displays 9 phenotypes for fruit weight trait, with the heaviest fruit weighing 150 g and the lightest 70 g. In the F1 generation, how many genotypes determine the phenotype of fruit weighing 100 g? Question 7: 2 DNA molecules are replicating 3 times. From the produced DNA molecules, select randomly 3 DNA molecules for 5 more replications. What is the total number of resulting DNA molecules? Question 8: On an mRNA molecule, the nucleotide sequence is as follows: 5’ XXX AAU AUG GGG GGG UUU UUX UUA AAA UGA 3’. If the mRNA molecule undergoes translation, how many codons and anticodons brought by tRNA properly match with ribosomes, respectively? Question 9: In the bacteria E. coli, assume there are 4 strains carrying mutations related to the lac operon. These mutations are described in the following table: In the table, plus signs (+) indicate functional genes/components, and minus signs (-) indicate non-functional genes/components due to mutation. Theoretically, which strains will transcribe structural genes when lactose is present in the environment? Question 10: An openly pollinated plant species has a diploid chromosome set of 2n = 6. Considering 3 gene pairs A, a; B, b; D, D located on 3 chromosome pairs, each gene determines a trait, and all dominant alleles are fully dominant. Assume the species has arisen trisomies corresponding to chromosome pairs due to mutation, and these trisomies are viable and capable of reproduction. Theoretically, how many maximum genotypes for the genes under consideration can these species have?

Note: The above short answer questions for review for the 1st mid-semester test of 12th-grade Biology in Vietnam are for reference only.

Students should combine study materials for review for the 1st mid-semester test of 12th-grade Biology provided by homeroom teachers to achieve the best results.

What are the short answer questions for review for the 1st mid-semester test of 12th-grade Biology in Vietnam? Who has the power to issue the internal regulations of secondary schools? (Image from the Internet)

Who has the power to issue the internal regulations of secondary schools in Vietnam?

According to point d, clause 1, Article 11 of the charter of lower secondary schools, upper secondary schools, and multi-level schools issued together with Circular 32/2020/TT-BGDDT, the regulations state as follows:

School principal and deputy principals

1. School principal

...

d) Duties and rights of principal:

- Build and organize the school’s apparatus according to regulations in Article 9 of this charter; appoint department/unit heads and deputy heads; and establish the school council as per regulations in Points dd and e Clause 1 Article 10 of this charter;

- Formulate the school’s development planning, objectives, vision and strategies; the school’s organizational and operational regulations; and the school’s annual education plans, which shall be proposed to the school council for approval and implementation;

- Adopt the school council’s decisions or conclusions concerning the matters mentioned in Point c Clause 1 Article 10 of this Decree. In case the principal does not agree with a decision from the school council, obtain the opinion of the supervisory education authority. While waiting for said opinion, the principal must abide by the parts of the school council’s decision that are not against existing regulations of law and this charter;

- Submit reports on and assessment of implementation of the school’s education plan and decisions issued by the school council to the school council and competent authorities;

- Recruit and manage teachers and staff; sign labor contracts with teachers and staff, and receive and relocate teachers and staff; manage academic matters; assign tasks to teachers and staff, inspect and evaluate teachers and staff; and reward and discipline teachers and staff as prescribed by law;

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Thus, the Principal has the responsibility to formulate the school’s development planning, objectives, vision, and strategies; the school’s organizational and operational regulations. Thus, the Principal has the power to issue the internal regulations of secondary schools in Vietnam.

What are the prohibited acts for 12th-grade students in Vietnam?

According to Article 36 of the charter of lower secondary schools, upper secondary schools, and multi-level schools issued together with Circular 32/2020/TT-BGDDT, students are prohibited from committing the following acts in school:

- Disrespect the dignity, honor or bodily integrity of teachers, officials and staff of their schools, other people and other students.

- Act dishonestly in learning, examinations or admission process.

- Buy, sell or use alcohol, tobacco, drugs, other stimulants, firecrackers or explosives.

- Use mobile phones and other devices in class for purposes other than learning and without the teacher's permission.

- Fight or disrupt public or school order or security.

- Use or exchange cultural products that incite violence or contain indecent materials; use toys or play games that impede their own healthy development.

- Students shall not commit other prohibited acts provided for by regulations of law.