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Cell division involves the distribution of identical genetic material, DNA, to two daughters cells. What is most remarkable is the fidelity with which the DNA is passed along, without dilution or error, from one generation to the next.
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∙ 9y ago
Dravyn Owens
The copying of the chromosomes
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If you have o negative blood do your parents have o blood too?
They could, but they don't need to. Both of your parents must have at least one O allele, meaning neither can have type AB blood. They must be either BO, AO or OO to produce a child with type O blood.
How is a punnett square a mode for what happens during meiosis?
As I'm sure you know, we get half of our genetic material from each parent, and we have two genes for every characteristic, one from mother and one from father, with the exception of a few traits found on the end of the X chromosome in males, who have an XY configuration and must depend on whichever gene the mother gave for certain characteristics such as color vision and proper blood clotting. During meiosis, egg or sperm cells are formed when our chromosomes are split in half to allow for the fertilization process to complete the genetic codes from the other parent. A Punnett square can be used to predict only which possible gene might be given by a single egg or sperm cell based on genotype of the parent, if known, but it is incomplete without the other portion of the code. However, it can be used to show how one parent may contribute either a dominant or recessive gene for a particular trait if the parent's complete genotype is known. For example, I know that my blood type is A, which is my phenotype, but that my genotype is AO because my father was type O and that is the only gene a type O person can donate. Type O genes are recessive, so that phenotype would not show up if someone inherits either a type A or type B gene from the other parent, but the type O gene would have a 50-50% chance of ending up in my egg cells after meiosis split my blood type gene combination (AO), called the genotype, in half. Half of my eggs would therefore contain type A genes and the other half would have type O genes, and that could be put on a Punnett square to show the 50-50% chance of my offspring having either type A or type O blood, depending on which gene he inherits from me, but the father's genotype is needed to complete the full Punnett square possiblities. Since my husband is type O, he could donate only an O gene in every sperm cell, which means that his meiotic Punnett square would have only type O genes in every square. For a true genetic prediction, both genotypes of each parent must be combined, but at least in meiosis, it can be predicted that I have a 50-50% chance to donate either a type A gene or a type O gene to my offspring, while my husband has a 100% chance to donate a type O gene because his genotype has to be OO. Our son, therefore must be either type A or type O and has a 50% chance of having either. We don't know because his blood type has never been tested, but those are his only possibilities. Since neither my husband nor I have type B genes, it would be impossible for our child to have type B or AB blood, which could be deduced from a Punnett square for meiosis for his mother and his father since our genotypes for this trait are known positively. I hope this helped!
How many cells results meiosis 2?
Célula primera diploide: 46 cromosomas (23 del papá y 23 de la mamá). esta célula replica su ADN y hace. MEIOSIS I y entonces da como resultado: 2 células hijas haploides, ya que cada una una con 23 cromosomas (o bien del papá, o bien de la mamá) dobles, es decir con una copia de cada uno. First diploid Cell: 46 chromosomes (23 of the father and 23 of the mother). This cell replicates its DNA and does. MEIOSIS I and then it gives as a result: 2 haploid daughter cells, since each one with 23 chromosomes (either from the father, or from the mother) doubles, that is to say with a copy of each one
Choking on food can happen when the blank does not work properly?
epiglottis and i know why you need the question ;) ghms Haha :O . I know too ;D
If mother has blood type A and the father has blood type O what are the possible blood type outcomes of their offspring?
The mother would be AB. * The mother could be A or AB. The explanation: Dad shows the recessive trait (type O), so must have two copies of the recessive allele (his genotype is ii). So the son must have inherited a copy of the recessive allele from Dad. But Junior is type A, so must have a copy of the IA allele. That must have come from Mum. To pass on the IA allele, Mum must be either IAIA (type A) or IAIB (type AB).
What must happen to surface tension in order to clean a surface?
must decrease
What musical instruments begin with o?
The organ and the oboe both begin with o.
What are compliments that begin with o?
Compliments that begin with o obviously beautiful original observant oddly amazing
What items that starts with the letter o?
Oars, oatmeal, ocean and octopus begin with O. Okra, office, onion and orchid begin with O.
What is the number of states that begin with an O?
there are 3 states names that start with the letter o there are Ohio Oregon Oklahoma
What objects begin with the letter o?
Oboe and olives are objects. Oranges and ostrich begin with the letter o.
What are some positive words that begin with the letter o?
Outstanding and optimistic are positive words. They begin with the letter o.
Words that begin with x and contain ss?
There are no such words in the English language.
How do you pronounce meiosis?
Meiosis is pronounced "my-oh-sis".Using the international phonetic alphabet - maɪˈoʊsɨsm - as in 'my'aɪˈ - long 'i' in 'bide'oʊ - long 'o' in 'bode's - in 'sigh'ɨ - 'e' in 'roses's - in 'sigh'
Are there any fruits that begin with the letter o except orange?
Oranges, olives and okra are fruits. They begin with the letter o.
What are some school subjects that begin with the letter O?
Oceanography and optometry are college subjects. They begin with the letter o.
What percent of states begin with the letter a i o or u?
24% of states begin with A, I, O, or U, or 12/50 states.
