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B. 2n+1 or 2n-1
C. n+1 or n-1
D. 2n - 1 only
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- What is the designation for a gamete with one copy of each homologous chromosome? Select one: a. 3n b. 46 chromosomes c. n d. 2nConsider a diploid cell that has 2n = 4 chromosomes: one pair of metacentric chromosomes and one pair of acrocentric chromosomes. Suppose that this cell undergoes nondisjunction, giving rise to an autotriploid cell (3n). The triploid cell then undergoes meiosis. Draw the different types of gametes that could 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.Which of the following terms should not be used to describe ahuman with three copies of chromosome 12?A. PolyploidB. TriploidC. AneuploidD. EuploidE. 2n + 1F. Trisomy 12
- If a diploid organism has 14 chromosomes (2n=14) a. How many chromosomes will its gametes have? b. After meiosis I during gamete formation, how many chromosomes are in each daughter cell? c. After meiosis I during gamete formation, how many chromatids are in each daughter cell?Genes G and H are located on chromosome 18. A woman with the genotype Gg Hh has a child with a man with the genotype GG HH. Unfortunately, the child has the genotype Ggg hhh and only survives for 6 months. When and in which parent did nondisjunction occur? Group of answer choices a. Meiosis II in the mother b. Meiosis I in the mother c. Meiosis I in the father d. Meiosis II in the fatherWhich case of nondisjunction is MOST likely to result in the production of an aneuploid cell? A. nondisjunction in meiosis I because two of the resulting cells will be n+1 and two will be n–1 B. nondisjunction in meiosis I because two of the resulting cells will be n; one will be n+1 and one will be n–1 C. nondisjunction in meiosis II because two of the resulting cells will be n+1 and two will be n–1 D. nondisjunction in meiosis II because all four resulting cells will be n; one will be n+1 and one will be n–1
- A diploid fruit fly has eight chromosomes. How many total chromosomeswould be found in the following flies?A. TetraploidB. Trisomy 2C. Monosomy 3D. 3nE. 4n + 1Non disjunction occurs when chromosomes fail to separate during meiosis, resulting in an abnormal number of chromosomes in the gametes. Assume an animal species has a diploid number of 4. Describe and/or show what the normal gametes would be like, and what would result from non disjunction in meiosis one, and what would result from non disjunction in meiosis two. You may use a drawing as part of your answer, but a drawing alone is not sufficient.Consider a diploid cell that has 2 n = 4 chromosomes: one 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 could result from meiosis in the triploid cell, showing the chromosomes present in each type. To distinguish between the different metacentric and acrocentricchromosomes, use a different color to draw each metacentric chromosome; similarly, use a different color to draw each acrocentric chromosome.
- Consider a diploid cell that has 2 n = 4 chromosomes: one 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 could 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.How many different combinations of maternal and paternal chromosomes can be packaged in gametes by an organism with a diploid number of 6 (2n=6; n=3) A. 24 B. 8 C. 32 D. 12Consider a hypothetical DIPLOID organism with ONE PAIR of homologous chromosomes. How many DNA molecules are there per nucleus in a somatic cell in G1? 4 8 2 1 Picture 1 shows Bob’s chromosome #18 pair. Picture 2 shows Sue’s chromosome #18 pair. Bob and Sue have a stillborn son with three copies of chromosome #18 that look like picture 3. In which parent did the chromosome separation problem occur? Bob Sue Both parents You need additional information to determine which parent. Starting with a population of genetically identical mice, you discover two new independent mutant strains in which all of the animals have epileptic seizures. In both strains, you know that the epileptic seizures are due to a single DNA mutation. You cross a mutant mouse from one strain to a mutant mouse from the second strain and find that none of their many offspring undergo spontaneous seizures. From…