In prophase 2, do homologous chromosomes line up? Are autosomal chromosomes diploid? Synapsis occurs during what? Is a centromere the same as a synapsis? What happens to the chromosome number during meiosis? During meiosis II, does DNA replication occur again? Homologous chromosomes separate during...
Distribution of the 35S and 5S rDNA loci on the mitotic chromosomes of the studiedBrachypodiumaccessions. Fluorescence in situ hybridisation (A-E) of the 25S rDNA (green fluorescence) and 5S rDNA (red fluorescence) probes to (A)B. distachyonBd21 (2n = 10;x = 5), (B)B. stac...
Nondisjunction can lead to chromosomal abnormalities at the organism level. When this occurs, would it be an error in mitosis or meiosis causing this outcome? If nondisjunction occurs at anaphase 2, what fails to separate? A. 2 daughter cells B. pair of homologous chromosomes C. sister chromati...
Before replication, one chromosome is composed of one DNA molecule. In replication, the DNA molecule is copied, and the two molecules are known as chromatids. During the later stages of cell division thesechromatids separate longitudinally tobecome individual chromosomes. What does N and 2N stand ...
Fill in the blank: is the phase of mitosis where chromosomes line up in the middle. During which phase of meiosis do tetrads (i.e. pairs of replicated homologous chromosomes) form? (Be specific) Fill in the blank: Chromosomes become visible during the stage of mitosis. During this phase ...