Two chromosomes have the ff. order of genes: Normal Abnormal A B C centromere DEFGHI A B G F E D centromere C H I (a) Does the abnormal chromosome have a pericentric or paracentric inversion? Why? (b) Draw a sketch to show how these two chromosomes would pair during synapsis, showing all four strands. In your sketch, assume crossing over has occurred between genes E and F. Illustrate the germ cells produced at the end of Meiosis II and describe these germ cells.

A line of mouse cells is grown for many generations in a medium with 15N. Cells in G1 are then switched to a new medium that contains 14N. Draw a pair of homologous chromosomes from these cells at the following stages, showing the two strands of DNA molecules found in the chromosomes. Use different colors to represent strands with 14N and 15N. Q. Cells in anaphase II of meiosis, after switching to medium with 14N

Based on the attached image, identify the stage at which each cell is in and draw an animal cell with a diploid chromosome number of 6. Indicate maternally- & paternally-derived chromosomes as red and blue, respectively, in your diagram. You do not need to indicate any crossing over. Be sure to include any of the indicated labels. On your diagram, indicate the # of chromosomes and # of homologous pairs in the stage of meiosis I (attached image), whether they are duplicated or not, and whether the cell has an n, 2n, or 4n complement of chromosomes. Also label homologous chromosomes, nonsister chromatids, and kinetochore microtubules.

In a turtle species, a diploid cell in the G1 phase of the cell cycle contains 22 picograms of DNA (picogram is a measure of the total mass of the DNA present). How much DNA is present in a cell of the same species at prophase II of meiosis (prophase of the second meiotic division)?

In the lab we use beaded plastic models to represent an unduplicated chromosome: (first picture)   Imagine that you put together 8 chromosomes as shown below: (2nd picture)   and then you join the sister chromatids together at their (magnetic) centromeres. How many chromosomes are represented by four sister chromatids joined together at their (magnetic) centromeres ?         2     4

a. What is the diploid number of chromosomes for a human? b. What is the haploid number of chromosomes for a human? Which cells are considered diploid, gametes or somatic cells? C. d. Which cells are considered haploid, gametes or somatic cells?

Based on the attached image, identify the stage at which each cell is in and draw an animal cell with a diploid chromosome number of 6. Indicate maternally- & paternally-derived chromosomes as red and blue, respectively, in your diagram. You do not need to indicate any crossing over. Be sure to include any of the indicated labels.

Hi, could your please answer this question? I'm so confused.  The following diagram (picture added) shows 2 pairs of autosomal chromosomes in a karyotype of a biological woman. Based on the karyotype, a genetic counselor determined that there is evidence that a translocation occurred between two non-homologous chromosomes. The other 21 pairs of chromosomes are NOT shown in this diagram. Assume no chromosomal aberrations occurred in the other chromosomes. As a student-researcher, what would be your answer if the genetic counselor asks you if you can determine whether the translocation occurred in a somatic cell, germ-line cell, or whether this can even be determined from the figure? provide the reasoning for your answer.

Focus on drawing the cell nucleus taking care to model the number and location of chromosomes. Although the chromosomes are only visible in each stage, draw them in all stages for clarity sake. (There needs to be a model drawing) What would a 2n=10 cell look like during prophase I? What would that cell look like during metaphase I? At the end of meiosis I? During metaphase II? At the end of meiosis II?

3 6 points A diploid cell in G1 of interphase has eight chromosomes. How many chromosomes and DNA molecules will be found per cell when this original cell progresses to the following stages? Complete the table below. Anaphase II G1 of interphase G2 of interphase- Telophase 1 (after cytokinesis) Anaphase I S 8 chromosomes/cell and 8 DNA molecules/cell 8 chromosomes/cell and 16 DNA molecules/cell 8 chromosomes/cell and 8 DNA molecules/cell 8 chromosomes/cell and 16 DNA molecules/cell 8 chromosomes/cell and 16 DNA molecules/cell Prophase II Telophase II (after cytokinesis) Metaphase I Metaphase II 8 chromosomes/cell and 16 DNA molecules/cell 4 chromosomes/cell and 8 DNA molecules/cell