Question
Draw a pair of chromosomes as they would appear during synapsis in prophase I of meiosis in an individual heterozygous for a chromosome duplication.
Step 1
The chromosomes can be represented as follows: \[ \begin{{align*}} \text{{Chromosome 1:}} & \quad ABCDEFG \\ \text{{Chromosome 2:}} & \quad ABCD'EFG \\ \end{{align*}} \] where D' represents the duplicated segment of the chromosome. Show more…
Show all steps
Your feedback will help us improve your experience
Sulav Pokhrel and 67 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Draw a one representative cell having 3 pairs of homologous chromosomes in all of the stages: of Mitosis; Meiosis I and Meiosis II. Prophase, Metaphase, Anaphase and Telophase.
Sketch a cell with three pairs of chromosomes undergoing meiosis, and show how nondisjunction can result in the production of gametes with extra or missing chromosomes.
Consider a diploid cell that has $2 n=4$ chromosomesone pair of metacentric chromosomes and one pair of acrocentric chromosomes. Suppose that this cell undergoes nondisjunction giving rise to an autotriploid cell $(3 n)$. The triploid cell then undergoes meiosis. Draw the different types of gametes that may result from meiosis in the triploid cell, showing the chromosomes present in each type. To distinguish between the different metacentric and acrocentric chromosomes, use a different color to draw each metacentric chromosome; similarly, use a different color to draw each acrocentric chromosome. (Hint: See Figure 8.27).
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD