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what is the inactivation of the x chromosome what is a barr bodyinactivation of the x chromosome is a phenomenon that happens in women as women have
is it more indicated for a geneticist desiring to map the x chromosome of the mother of a given family the researcher does not have access to her dna
is it possible that an x chromosome of a woman can have come from her fatherit is not only possible that an x chromosome of a woman is from her
concerning the sex chromosomes of the xy system which type of gamete do the male and the female individuals respectively producethe individual of the
how is the genetic determination of sex established in humansin the diploid genome of human beings there are 46 chromosomes 44 of them are autosomes
what are multiple alleles is there dominance in multiple allelesmultiple alleles is the phenomenon in which the similar gene has more than two
what is pleiotropypleiotropy or pliotropy is the occurrence in which a single gene conditions several dissimilar phenotypical traitssome phenotypical
what is the genetic condition in which the heterozygous individual has different phenotype from the homozygous individualthis condition is called
according to mendels law phenotypical characteristics would be verified by pair of factors alleles that separate independently in gametes what are
is crossing over important for the diversity of biological evolutionsexual reproduction and recombination of linked genes crossing over are with
how can the concept of recombination frequency be used in genetic mappinggenetic mapping is the determination of the location of the genes in a
what is a centimorgancentimorgan or recombination unit by convention is a distance among two linked genes that corresponds to 1 of recombination
why does the recombination frequency of genes vary with the distance between them in the chromosome the farther the distance among the loci of two
what is recombination frequencyrecombination frequency or crossing over rate is the percentage of recombinant gametes made by crossing over in
in genetic recombination by crossing over what is the difference between parental gametes and recombinant gametesparental gametes are those gametes
what is crossing over how is meiosis related to this phenomenonlinked alleles for instance a-b and a-b form the gametes a-b and a-b that maintain the
what is linkagetwo genes are said to be under linkage or linked when they reside in the same chromosomefor instance the research of the human genome
why is drosophila a convenient animal for the study of linked genesthe fruit fly drosophila is suitable for the study of genetics because it shows
why is not mendels second law always valid for two or more phenotypical traits of an individual mendels second law or the law of the independent
what is mendels second law mendels second law postulates that two or more different traits are also conditioned by two or more pair of dissimilar
what are the three main steps for a good study of a genetic family treestep 1 to determine whether the studied phenotypical form has a dominant or
what are the main conventional symbols and signs used in genetic family treesin genetic family trees the male sex is usually shown by a square and
what is the condition for mendels second law to be validmendels second law is only valid for genes located in dissimilar chromosomes for genes
what is a genetic family treegenetic family tree is a schematic family tree that shows the biological inheritance of some trait by successive
why can the crossing of an individual that manifests dominant phenotype with another that manifests recessive phenotype for the same trait determine