What are the kinds of gametes that can be produced by an AAbbCc individual?
99929
AbC and Abc (only two types).
430415
To answer your question....yes.  The egg cells of the female all carry X chromosomes.  The sperm cells can carry either X or Y.  So basically, the sex of a mammal depends on the male, and which particular sperm fertilizes the egg (X).  If an X sperm fertilizes the egg, you have XX, which is a female, and if a Y sperm fertilizes it, you have XY, which is male.  This is why some sex-linked traits are more visible in males, such as color blindness, but that's a whole different post.
228460
Codegirl gave a great answer, although she left out the possibility of your husband being AB and giving an A to make your child AA.  All I'd add is that you have to understand the difference between phenotype (which is the expressed form) versus the genotype (with is the combination of genes).  When you and your baby were typed, they only look at the phenotype, not the genotype.\n\nA person tested as A can be genotypically AA (A from both parents) or AO (A from one parent; O, which is recessive, from the other).\nA person tested as B can likewise be BB (B from both parents) or BO (B from one parent, O from the other).\nA person tested as AB must be genotypically AB, getting one from each parent.\nA person taht is tested as O must likewise be OO, getting O from each parent.\n\nA parent gives one of their two alleles to their child.  If you are AB, you could give your child either A or B.  Since their are two possible combinations of alleles that make A (AA and AO), the father might have contributed either an A or an O.  So the only thing known for certain about the father's genotype is that he is NOT BB.  He could be either AA, AB, or AO (and contributing an A to make your child genotypically AA), or he could be either BO, OO or AO (and contributed an O to make your child genotypically AO).  But phenotypically, the father could be anything: A, B, AB, or O.
2224
Gametogenesis is the process by which gametes (spermatocytes and ova) are produced in our body
135674
A common abnormality is caused by nondisjunction, the failure of replicated chromosomes to segregate during Anaphase II. A gamete lacking a chromosome cannot produce a viable embryo. Occasionally a gamete with n+1 chromosomes can produce a viable embryo.\n\nSex-chromosome abnormalities(not to mention super-male & super-female) may also be caused by nondisjunction of one or more sex chromosomes. Any combination (up to XXXXY) produces maleness. Males with more than one X are usually underdeveloped and sterile. XXX and XO women are known, although in most cases they are sterile.
981228
Ans. #2\nThis is a modern description of what occurs. However,I don't believe \n  that  ole'  Greg ever used the words "alleles" or "gametes" back in the days  at the monestery.
321609
homozygous-XX-female\nheterozygous-XY-male
940033
Let's take the Blue eyes - brown eyes example.  Brown is the dominant trait, so we'll use the capital B letter.  Blue is the recessive trait, so we'll use the b letter.  A person with blue eyes has the genotype bb (got a b from dad and a b from mom).  A person with brown eyes can be homozygous BB (got B from dad and B from mom) or heterozygous Bb (got B from one parent and b from the other parent).\nA first generation usually starts with pure breeds, so both homozygous.  We'll have BB and bb as the starting parents.  Those parents produce gametes in their gonads.  Let's say that mom has blue eyes and dad has brown eyes.  All her eggs will have the b gene as all dad's spermatozoids will have the B gene.  If you want to make the Punnett square, you'll find that all babies will have 100% probability to be Bb\n____|__B__|__B__\n__b_|_Bb__|_Bb__\n__b_|_Bb__|_Bb__\nThe second generation is made by taking two of those offspring and crossing them.  First, you have to find out what alleles will be in the gametes.  Half of the eggs will be b and half will be B.  Also, half of the spermatozoids will be B and half will be b.  In the Punnett square you'll have.\n____|__B__|__b__\n__B_|_BB_|_Bb_\n__b_|_Bb__|_bb__\nHere, the babies will have 25% chance to have blue eyes (bb) and 75% chance to have brown eyes (25% homozygotous BB and 50% heterozygotous Bb).
1042229
Pls refer below link..\n\nhttp://kidshealth.org/parent/medical/body_basics/male_reproductive.html\n\nCheers!!!
71089
Angiosperm Life Cycle\nI. Plant Life Cycles\n\nA. All of us are probably most familiar with the human life cycle. We know that, as adults, most of our cells have two sets of chromosomes, one from our mother and the other from our father. These cells (really the chromosome complement of their nuclei) are called diploid (2N). Special cells undergo meiosis where the chromosome number of the resulting cells are half that of the parent cell. These cells are haploid (1N) and develop directly into gametes (sperm and egg). These gametes fuse during fertilization to produce a zygote which divides through mitosis to form the adult organism. Bear in mind, the two important events in any life cycle (animal or plant) are fertilization and meiosis.\n\nB. In plants, things are a bit different because the products of meiosis (spores) don't immediately become gametes. They divide mitotically to form a completely separate organism! This organism is called the gametophyte and is haploid. The gametophyte may be composed of many cells and be a fully functional plant (such as the green leafy moss) or be composed of only a few cells (as in flowering plants).\n\nC. So how are the gametes formed? The gametophyte produces special structures that make the gametes via mitosis. After fertilization occurs, a diploid zygote forms and grows via mitosis to form the sporophyte which is diploid. This life cycle is called alternation of generations {0256}{0257}{0517}, because the gametophytic and sporophytic stages alternate with each other.\n\nII. Angiosperm Life Cycle {1075}\n\nA. Production of the male gametophyte {0258}. Each anther contains from one to four microsporangia. A microsporangium contains microspore mother cells (microsporocytes) that undergo meiosis producing haploid microspores {0291}{0294}{0295}. Each of the four components of the tetrad {0296} differentiate into pollen grains {0289}. Mitotic divisions result in a mature microgametophyte, otherwise known as pollen. Each pollen grain contains a tube nucleus and a generative nucleus {0290}. When the pollen grain lands on the stigma (below), the generative nucleus divides to form two sperm nuclei. {1086}\n\nB. Production of the female gametophyte {0259}. Inside the ovary are the ovules {0511} that eventually become seeds. The megaspore and later the megagametophyte form inside the ovule. The megagametophyte eventually produces the egg, the female gamete.\n\nInside a young ovule, one cell differentiates into a megaspore mother cell (megasporocyte) {0562}. Meiosis produces four megaspores, but usually only one of these survives. It divides mitotically three times {0563}{0565} giving eight nuclei (in seven cells) {0568}. One cell at the micropyle end of the ovule becomes the egg and the two nuclei in the large central cell function as polar nuclei.\n\nC. Pollination {0260}{0518}{1086}. If the pollen grain is on a compatible stigma, it attaches, germinates and forms a pollen tube which grows through the style tissue on its way to the ovule.\n\nD. Fertilization. When the pollen tube reaches the micropyle opening, it releases two sperm nuclei. One fuses with the egg forming a zygote {0261}, the other fuses with the already fused polar nuclei making a triploid fusion nucleus. This DOUBLE FERTILIZATION is a feature found only in angiosperms. The triploid fusion nucleus divides mitotically to form endosperm which is used as a nutritive tissue for the growing embryo {0615}.\n\nD. Fruits and seeds {0538}. The mature ovule becomes the seed. The integuments become the seed coat that surrounds the endosperm and embryo. The mature carpel (and sometimes associated tissues) becomes the fruit.
508079
&^&^&^\n\nWhat you are looking for is an egg donor.  Maybe you can be the sperm donor and look for surrogate mothers to incubate your children.\nGod Bless you and your family.\n\nThe only other logical answer was provided by Blink-182madness
343366
crossin over doesnt change amount of gametes, it simply involves the exchange of genes between chromatids, it results in genetic diversity. gametes are not the chromosomes but rather the sex cells like sperm or eggs and those are haploid. meaning they have one half amount of required chromosomes. this is how evolution and genetic diversity is achieved in most sexually reproducing species
409310
Assuming we're talking about humans ...\n\nIn the female gamete (the ovum, or egg cell) the DNA in the nucleus is contained in 23 chromosomes.  One of these is the sex chromosome, but this is always an X chromosome.  Outside the nucleus are additional pieces of DNA ... most notably, DNA in the mitochondria of the cell, which will get passed intact to the offspring.\n\nIn a male gamete (spermatozoan or sperm cell) the DNA in the nucleus is also contained in 23 chromosomes.  One of these is the sex chromosome and is either a Y or an X chromosome.  This will determine the gender of the offspring.  Sperm cells also have DNA in their mitochondria, but these are discarded upon fertilization (so the offspring gets mitochondrial DNA exclusively from the mother).\n\nUpon fertilization, the two gametes make a zygote.  The 23 chromosomes from each (haploid) gamete produces a complement of 46 total chromosomes in the (diploid) zygote.  The pair of sex chromosomes determines the gender of the developing offspring ... XY is a boy, XX is a girl.
580833
sex-linked genes which can still be classified into x-linked genes and y-linked genes... ;p
632674
Agree with above: possible options are A+, A-, B+, B-, AB+ and AB-.\n\nTo go into more detail, and explain why a kid with blood type B is possible:\n\nBlood types are named according to proteins in the blood. If you have protein A but not B, you are blood type A. If you have B but not A, you are blood type B. If you have both, you're AB, and if neither, you're O. (O is "recessive" - it just means that you don't make protein, so to be blood type O, you have to have two O genes.)\n\nYou only need one copy of a gene to make the protein, but we all have two copies (alleles) of each gene. We know the dad has to have one A and one B gene. However, the mom could have two A genes, or only one A and one O.\n\nEach parent gives one allele to the child. If the mom has genes AO, she could give the O to the child. The dad has both A and B. So, if a kid ended up with O from mom and B from dad, its genes would be OB and its blood type would be B.\n\nThe Rhesus factor (Rh) + or - is also recessive. If both parents are carrying a negative gene, and the kid got two copies of the negative gene, then it could be Rh-.
958342
Here are the 'answers', in order you asked.\n\nfamily\nmetalloids\ngroup\ntransition elements\n\nGet an "A".
824582
Fertilization.\nOr are you asking about what happens in Prophase 1 of Meiosis? Homologous chromosomes, one from each parent pair.