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which of following do not belong to pathogenic variations of the endogenous genes ( )

A. gene amplification
B. abnormal gene expression
C. invasion of the foreign genes
D. gene arrangement
E. point mutation

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The following statements about structural genes in eukaryotes are incorrect ( )

A. Structural genes are mostly broken genes
B. Transcription of structural genes is discontinuous
Contains a large number of repeated sequences
D. Structural genes make up a small proportion of the genome
E. The products are mostly mono-cistron RNA

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when we diagnose a certain autosomal recessive hereditary disease using Allele-specific oligonucleotide hybridization, if this sample can both hybridize normal probe and mutated probe, the sample is ( )

A. normal person
B. heterozygote patient
C. homozygote patient
D. carrier
E. cann’t ascertain

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The enzyme that laboratory usually use to link exogenous DNA and vector DNA is ( )

A. DNA polymeraseⅠ
B. DNA polymeraseⅡ
C. DNA polymerase Ⅲ
DNA ligase
E. reverse transcriptase

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The product of gene expression is ( )

A. DNA
B. RNA
C. protein
D. most are protein, some are RNA
E. enzyme and DNA

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which of following do not belong to pathogenic variations of the endogenous genes ( )

A. gene amplification B. abnormal gene expression C. invasion of the foreign genes D. gene arrangement E. point mutation

The following statements about structural genes in eukaryotes are incorrect ( )

when we diagnose a certain autosomal recessive hereditary disease using Allele-specific oligonucleotide hybridization, if this sample can both hybridize normal probe and mutated probe, the sample is ( )

The enzyme that laboratory usually use to link exogenous DNA and vector DNA is ( )

The product of gene expression is ( )

A. gene amplification
B. abnormal gene expression
C. invasion of the foreign genes
D. gene arrangement
E. point mutation