Recombination mapping has been fundamental in studying the arrangement of loci along chromosomes. Which of the following statements about recombination mapping is NOT correct? A. Measuring phenotypes is an important component B. It cannot be used for breeding of animals C. Generation time is an important factor for its feasibility D. It cannot be used for asexual organisms E. Genome-wide association mapping can be combined with recombination mapping for better understanding of genetic bases of phenotypes
Genetic Recombination
Recombination is crucial to this process because it allows genes to be reassorted into diverse combinations. Genetic recombination is the process of combining genetic components from two different origins into a single unit. In prokaryotes, genetic recombination takes place by the unilateral transfer of deoxyribonucleic acid. It includes transduction, transformation, and conjugation. The genetic exchange occurring between homologous deoxyribonucleic acid sequences (DNA) from two different sources is termed general recombination. For this to happen, an identical sequence of the two recombining molecules is required. The process of genetic exchange which occurs in eukaryotes during sexual reproduction such as meiosis is an example of this type of genetic recombination.
Microbial Genetics
Genes are the functional units of heredity. They transfer characteristic information from parents to the offspring.
-
Recombination mapping has been fundamental in studying the arrangement of loci along chromosomes. Which of the following statements about recombination mapping is NOT correct?
A. Measuring
phenotypes is an important componentB. It cannot be used for breeding of animals
C. Generation time is an important factor for its feasibility
D. It cannot be used for asexual organisms
E. Genome-wide association mapping can be combined with recombination mapping for better understanding of genetic bases of phenotypes
-
If a cross produced a progeny population of 900 plants that consists of 258 with white flowers and 642 with purple flowers, which of the following is most likely? P = purple, p = white.
A. They deviated from a 3:1 ratio because of epistasis.
B. They are the progeny of a cross in which one parent was PP and the other was Pp.
C. P is clearly semi-dominant.
D. The purple phenotype is co-dominant with white
E. They resulted from a cross in which the parents were of identical genotype at the P locus.
Step by step
Solved in 2 steps
