Nondisjunction in meiosis II results from the failure of the sister chromatids to separate during anaphase II. Since meiosis I proceeded without error, 2 of the 4 daughter cells will have a normal complement of 23 chromosomes. The other 2 daughter cells will be aneuploid, one with n+1 and the other with n-1.
Q. Who inherits an X linked allele from a man who carries it?
If a male who has an X linked condition has a daughter , he will always pass on the changed gene to her. This is because males only have one X chromosome and they always pass this on to their daughters. All his daughters will therefore be carriers.
Table of Contents
- Q. Who inherits an X linked allele from a man who carries it?
- Q. Which of the following is true of an X linked gene but not of a Y linked gene?
- Q. How is the mutant allele for yellow body inherited?
- Q. Which of the following is the meaning of the chromosome theory of inheritance as expressed in the early twentieth century quizlet?
- Q. What phase do 2 diploid daughter cells form?
Q. Which of the following is true of an X linked gene but not of a Y linked gene?
Which of the following is true of an X-linked gene but not of a Y-linked gene? The gene is present in both males and females.
Q. How is the mutant allele for yellow body inherited?
A recessive allele on the X chromosome is responsible for red-green color blindness in humans. A woman with normal vision whose father is color blind marries a color-blind male. How is the mutant allele for yellow body inherited? It is recessive.
Q. Which of the following is the meaning of the chromosome theory of inheritance as expressed in the early twentieth century quizlet?
2) Which of the following is the meaning of the chromosome theory of inheritance as expressed in the early 20th century? A) Individuals inherit particular chromosomes attached to genes. Mendelian genes are at specific loci on the chromosome and in turn segregate during meiosis.
Q. What phase do 2 diploid daughter cells form?
During telophase I, the chromosomes are enclosed in nuclei. The cell now undergoes a process called cytokinesis that divides the cytoplasm of the original cell into two daughter cells. Each daughter cell is haploid and has only one set of chromosomes, or half the total number of chromosomes of the original cell.
