Genes Along Chromosomes

What is the process by which chromosomes and genes are paired in diploid cells and then separated during meiosis?

What did Gregor Mendel propose in 1860?

What is the consequence of fertilization on chromosomes and genes?

What is the technique used to visualize the location of a particular gene?

When was the process of mitosis worked out by cytologists?

What is the name of the biologist who published a drawing of mitosis in 1882?

What is the term used to describe traits that are alternatives to the wild type?

What is the notation used to symbolize the allele for the wild-type trait in Drosophila?

How are human genes typically written?

What is the origin of the symbol for a gene in Drosophila?

What is the symbol for the allele for white eyes in Drosophila?

What is the concept that suggests that Mendelian genes have specific loci along chromosomes?

What is the process that accounts for the segregation of alleles of a gene into separate gametes?

Who first demonstrated that Mendelian inheritance has its physical basis in the behavior of chromosomes?

What is the name of the common insect used by Morgan for his genetic studies?

What is the term for the phenotype most commonly observed in natural populations?

How many pairs of chromosomes do fruit flies have?

What is the period of time required to breed a new generation of fruit flies?

What was the characteristic of the single male fly discovered by Morgan?

What was the task that Morgan had to do to find naturally occurring variant individuals?

What is the term for the location of a gene on a chromosome?

What is the term for the random arrangement of chromosome pairs during metaphase I?

What was the unexpected result observed by Morgan in the F2 offspring?

Why did Morgan conclude that the gene for white eyes is located on the X chromosome?

Why is it necessary for a female to have two copies of the recessive allele to express the white-eyed trait?

What can be inferred about the presence of the wild-type allele in a male fly?

What is the reason for the 3:1 phenotypic ratio observed in the F2 offspring?

What is the genotype of a male fly that expresses the white-eyed trait?

What is the primary reason Morgan's finding of the correlation between a particular trait and an individual's sex provided support for the chromosome theory of inheritance?

What is the role of the SRY gene in sex determination in humans?

What is the term for a gene located on either sex chromosome?

What is the consequence of fertilization by a sperm cell containing a Y chromosome?

What is the difference between the X and Y chromosomes in terms of size?

How do the X and Y chromosomes in males pair and behave during meiosis?

What is the probability of a male or female offspring being produced in mammals?

What is the term for the classification of an individual into a group with a shared set of anatomical and physiological traits?

How many genes are located on the human X chromosome?

What is the term for the genes located on the Y chromosome?

What percentage of genes on the human Y chromosome are expressed only in the testis?

What is the function of the WNT4 gene in the development of female gonads?

How are the Y-linked genes typically passed on from one generation to the next?

What is the result of an embryo having extra copies of the WNT4 gene?

What is the current understanding of sex determination?

What is the term used to describe individuals born with anatomical features that do not match their sense of gender?

What is the main difference in the pattern of inheritance between autosomal genes and X-linked genes?

Why do males have a higher incidence of X-linked recessive disorders?

What is the term used to describe the genetic makeup of a male with respect to an X-linked gene?

Who observed the pattern of inheritance of X-linked genes in Drosophila?

What is the condition of red-green color blindness inherited as?

Why do females need to inherit two copies of the recessive allele to express the phenotype?

What is the typical life expectancy of an individual with Duchenne muscular dystrophy?

What is the main cause of bleeding in individuals with hemophilia?

Why was Queen Victoria of England significant in the spread of hemophilia?

What is the current treatment for individuals with hemophilia?

What is the role of dystrophin in muscle function?

What is the mode of inheritance of Duchenne muscular dystrophy?

What is the purpose of X inactivation in female mammals?

What is the compact object formed by the inactivated X chromosome in each cell of a female?

What happens to the inactive X chromosome in the ovaries?

How is the selection of which X chromosome will form the Barr body determined?

What is the result of X inactivation in terms of cell types in females?

What happens to the inactive X chromosome in subsequent cell divisions?

What happens in a female who is heterozygous for a sex-linked trait?

What is involved in the inactivation of an X chromosome?

What is the role of the XIST gene in X inactivation?

What is the result of the interaction between the XIST RNA product and the X chromosome?

Why do females who are heterozygous for a recessive X-linked mutation have patches of normal skin and patches of skin lacking sweat glands?

What is the significance of the association of the two regions, one on each X chromosome, during embryonic development?