Question

B3 Выберите НЕправильные утверждения. 1. Синдром Дауна вызывается геномной мутацией. 2. Генные и геномные мутации – это синонимы. 3. Изменения признаков, вызванные факторами внешней среды, наследуются. 4. Мутации, вызывающие понижение жизнеспособности, называются полулетальными. 5. Ненаследственная изменчивость – изменение фенотипа в пределах нормы реакции. 6. Искусственный мутагенез применяют для увеличения количества мутаций. 7. Мутации в половых клетках передаются по наследству. 8. Источником комбинативной изменчивости является митоз. 9. Гены, определяющие развитие разных признаков, называются аллельными. 10. Совокупность генов организма составляет его фенотип. 11. Примером анализирующего скрещивания может служить скрещивание Аа х аа. 12. Группы сцепления генов находятся в разных хромосомах. 13. Условия внешней среды, как правило, изменяют норму реакции организма.

Answer 1

2:3:4:8:9:10:12 думаю так

Answer 2

Incorrect Statements:

1. The Down syndrome is caused by a genomic mutation. - This statement is incorrect. Down syndrome is caused by a chromosomal abnormality, specifically the presence of an extra copy of chromosome 21. It is not caused by a genomic mutation. - [[1]]

2. Genetic and genomic mutations are synonyms. - This statement is incorrect. Genetic and genomic mutations are not synonyms. Genetic mutations refer to changes in individual genes, while genomic mutations refer to changes in the structure or number of chromosomes. - [[2]]

3. Changes in traits caused by environmental factors are inherited. - This statement is incorrect. Changes in traits caused by environmental factors are not inherited. Inheritance refers to the passing of genetic information from parents to offspring, while changes caused by the environment do not alter the genetic information. - [[3]]

4. Mutations that cause a decrease in viability are called semilethal mutations. - This statement is incorrect. Mutations that cause a decrease in viability are called sublethal mutations, not semilethal mutations. - [[4]]

5. Non-inherited variability refers to changes in the phenotype within the normal range of reaction. - This statement is incorrect. Non-inherited variability refers to changes in the phenotype that are not inherited, but it does not specifically refer to changes within the normal range of reaction. - [[5]]

6. Artificial mutagenesis is used to increase the number of mutations. - This statement is incorrect. Artificial mutagenesis is the induction of mutations in organisms using various techniques, but its purpose is not specifically to increase the number of mutations. It is often used in research to study the effects of mutations on organisms. - [[6]]

7. Mutations in germ cells are inherited. - This statement is correct. Mutations that occur in germ cells (sperm or egg cells) can be passed on to offspring and are therefore inherited. - [[7]]

8. Mitosis is the source of combinatorial variability. - This statement is incorrect. Combinatorial variability refers to the shuffling and recombination of genes during sexual reproduction, which occurs during meiosis, not mitosis. - [[8]]

9. Genes that determine the development of different traits are called allelic genes. - This statement is incorrect. Alleles are different forms of the same gene, not genes that determine the development of different traits. - [[9]]

10. The combination of an organism's genes constitutes its phenotype. - This statement is incorrect. The phenotype of an organism is determined by the interaction of its genes with the environment, not solely by the combination of its genes. - [[10]]

11. An example of an analyzing cross can be the cross Aa x aa. - This statement is incorrect. An analyzing cross involves crossing an individual with a known genotype (usually homozygous recessive) with an individual of unknown genotype to determine the unknown genotype. The example given (Aa x aa) does not fit this definition. - [[11]]

12. Gene linkage groups are located on different chromosomes. - This statement is correct. Gene linkage groups are located on the same chromosome, not on different chromosomes. - [[12]]

13. Environmental conditions usually alter the norm of reaction of an organism. - This statement is incorrect. Environmental conditions can influence the expression of traits, but they do not typically alter the norm of reaction, which refers to the range of phenotypic outcomes for a given genotype in different environments. - [[13]]