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Ignoring the effects of crossing over what proportion of a woman's eggs contain only chromosomes she received from her mother?
Wiki User
∙ 10y ago
1 in 2^23 or 8,388,608
Wiki User
∙ 10y ago
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In Jacob syndrome did the nondisjunction occur in the mother or father?
Jacob syndrome, 49XYY, has to occur as a result of nondisjunction in the father. The Jacob Syndrome male would have received the X chromosome from his mother, and both Y chromosomes from the father (since the Y chromosomes can not possibly have come from the mother). Jacob Syndrome can be the result of nondisjunction in meiosis.
What are the differences between autosomes and sex chromosomes?
Autosomes are the chromosomes that are not the sex chromosomes. 22 of the 23 pairs of human chromosomes are autosomes and the final 23rd pair are the sex chromosomes, one of each received by the offspring by the parental generation (one from the mother and one from the father). Moreover, the sex chromosomes dictate the sex of the offspring; males have XY and females XX in most cases, but as long as there is a Y chromosome, the offspring is considered a male.
Explain how the type of chromosome results in some children being male and others being female?
A child's gender is dependent on which chromosome (X or Y) is received from the father. The mother has the chromosomes XX and the father has XY. Each parent randomly gives the child one of their respective chromosomes (through meiosis). The mother gives one of her two X chromosomes and the father gives either the X or the Y. If the father gives a copy of his X chromosome, the baby is a girl. If the father gives his Y chromosome, the baby is a boy.
What determines sex?
Sex, as in gender, is determined by the sex organs possessed by an individual. Genetic errors and mutations can make it difficult to determine by just this, but more sophisticated methods exist.
What process must occur before a cell can go through cell division?
before cell devision the cell must undergo cell cycle
What is the name given to a pair of chromosomes of which one was received from mom and the other was received from dad?
Paternal chromosomes = from dadMaternal chromosome = from mom
How many chromosomes are involved in asexual reproduction?
During sexual reproduction, half of the chromosomes for the new organism are received from each parent. In humans, this means that 22 chromosomes are received from each parent, 44 chromosomes in total.
What are the ratings and certificates for The Crossing - 1999?
The Crossing - 1999 is rated/received certificates of: Belgium:KT
What are the ratings and certificates for Crossing Fields - 1997?
Crossing Fields - 1997 is rated/received certificates of: Argentina:13
What are the ratings and certificates for Crossing Lines - 2013?
Crossing Lines - 2013 is rated/received certificates of: Germany:16
What can you say about the number of chromosomes received by each daughter cells after mitosis?
The number of chromosomes that each daughter cell has after mitosis is equal to the number of chromosomes in the original (parent) cell.
What are the ratings and certificates for Dark Crossing - 2010?
Dark Crossing - 2010 is rated/received certificates of: USA:R (certificate #46051)
What are the ratings and certificates for Crossing the Mob - 1988 TV?
Crossing the Mob - 1988 TV is rated/received certificates of: Iceland:L
What are the ratings and certificates for Crossing White Lines - 1999?
Crossing White Lines - 1999 is rated/received certificates of: USA:G
What are the ratings and certificates for Crossing the Line - 1990?
Crossing the Line - 1990 is rated/received certificates of: Iceland:12 USA:R
What might happen if an egg cell received two X chromosomes during meiosis instead of one?
The offspring could have three X chromosomes or two X chromosomes and a Y chromosome.
What are the ratings and certificates for Crossing the Line - 2002 TV?
Crossing the Line - 2002 TV is rated/received certificates of: UK:12
