Variation in the traits of organisms may be attributable toa. gene mutations.b. alterations in chromosome structure.c. variation in chromosome number.d. all of the above

Which of the following statements about coding strands of a gene is false? a. The sequence of the coding strand is complementary to the primary transcript. b. The sequence of the coding strand is complementary to the template strand. c. The coding strand may be on either strand of a given chromosome. d. All of the above are true about the coding strand.

A paracentric inversiona. includes the centromere within the inverted region.b. does not include the centromere within the inverted region.c. has two adjacent inverted regions.d. has an inverted region at the very end of a chromosome.

Haplotype association studies are aimed at the identification ofa                              particular based on                            .a. chromosome, an abnormality in its structureb. chromosome, the arrangement of molecular markersc. gene, its linkage to other genes or molecular markersd. gene, chromosomal rearrangements

In nature, the vast majority of individuals within a species have unique genetic codes. In the last few decades, human geneticists have discovered ways to artificially duplicate a genetic code. Two organisms with identical genetic codes might be the result ofA. CloningB. MutationC. Coevolution

Trisomy 18 (Edwards Syndrome) is identified by a karyotype that shows A. too few copies of chromosome 18. B. too many copies of chromosome 18. C. an inversion of genes on chromosome 18. D. a translocation between both chromosome 18.

To map the distance between molecular markers via testcrosses,the markers must bea. polymorphic.                     c. fluorescently labeled.b. monomorphic.                  d. on different chromosomes.

Which of the following statements is false?   A. Humans have 1 pair of sex chromosomes   B. Humans have 46 chromosomes   C. Sex chromosomes are considered a homologous pair   D. Humans have 23 pairs of chromosomes   E. Humans have 22 autosomes

One of the following is most suitable for study of mutations: A. Haploids B. Diploids C. Tetraploids D. Polyploid

fill in the blank:  a. centromeric DNA is known as ____ and may be located in several locations on the chromosome. if there is a high variation in the primary centromere ste, a centromere may cause use of a ___ site that may make a ___ centromere. This may result in the increased risk of ___ ,___ , and ___.