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Unfertilized egg is haploid; but fertilized egg is diploid. That is why you sometimes see chickens even in commercial eggs.
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How many eggs are produced from one oocyte?
one cell is produced from one primary oocyte.
During oogenesis an oogonium directly gives rise to what?
A primary oocyte
Where would you locate haploid cells in a cat?
Presumably a cat's reproductive cells (eggs, sperm) would be haploid.
Are fingers made of diploid cells or haploid cells?
Fingers are made of diploid cells. Haploid cells are the reproductive cells.
What is the haploid number for a tiger?
19
What is a haploid female sex cell produced by meiosis called?
Oocyte
What is another name for an immature egg cell?
gametes, sex cells, haploid cells. the process is meiosis.
When a cell contains only one chromosome of each homologous pair the cell is?
ploidy is the classification based on the number of homologous chromosomes present. if there is only one pair of homologous chromosomes then the nucleus is said to be haploid if there are two pairs then it is known as diploid if three it is triploid if many it is noted as polyploidy --------------------------- an oocyte or a spermatocyte are haploid cells in a species that normally have diploid cells.
Function of the polar bodies in oogenesis?
Although the polar bodies do not become anything they do serve a purpose in reproduction/oogenesis. The polar bodies are the byproducts of the primary and secondary oocyte at each point of meiotic division in oogenesis. The polar body allows for the oocyte to get rid of chromosomes while at the same time taking the least amount of resources (cytoplasm) from the oocyte. Each meiotic division serves as a means of moving the oocyte toward its need haploid number of chromosomes for fertilization. So you could say that the polar bodies function as a means of cellular structure conservation. They help ensure that the oocyte remains nutrient/resource rich while at the same time helping the oocyte reach its haploid number.
What purpose does fertilization serve?
The purpose of fertilization is the first step in the reproduction of new offspring, which contributes to the longevity of different species, so that they do not become extinct.i.e. human fertilization occurs when a haploid sperm cell & haploid secondary oocyte produce a diploid nucleus
What happens to the 4 haploid cells after meiosis?
Depends. In males all four cells become sperm. In females one becomes to oocyte while the other three become polar bodies that can provide some nutrients to the oocyte, or just dissipate depending on species.
When a primary oocyte divides a secondary oocyte and what are produced?
polar body
Describe the functions of the gonads?
Gonads are testes and ovaries. Testes produce spermatozoa by spermatogenesis and ovaries produce ova by oogenesis. Spermatozoa are produced via mitosis, producing diploid primary spermatocytes, then meiosis I which produces haploid secondary spermatocytes, which are converted to spermatids by meiosis II. Spermatids become spermatozoa. For the inchoate ovum, a diploid primary oocyte forms, followed meiotically by a haploid secondary oocyte. Ovulation occurs and the secondary oocyte only becomes a true ovum after syngamy. During the process, primary polar bodies become secondary polar bodies and are all rejected. Info from Raven, Johnson, Losos, Mason, Singer. Biology 8th Edition. (2008). McGraw Hill.
Is the cell in prophase II an haploid cell?
Monkeys have both diploid and haploid cells. Organisms produce these 2 general cell types. There are several differences between diploid and haploid cells. Diploid means it contains 2 complete sets of chromosome (2n). Haploid means the cell contains 1 st of chromosomes (n). Diploid cells are the result of mitosis while haploid cells is the product of meiosis. Every species has a different number of chromosomes.
When the primary oocyte divides a secondary oocyte and what else is produced?
first polar body
What is the difference between ovum and secondary oocyte?
ovum is the product after the secondary oocyte fuses with sperm
What is oogenessis?
This is the process by which eggs (ova) are made.It begins with the primordial germ cells (also called oogonium) which are diploid (have the full set of paired chromosomes). They divide by mitosis to produce primary oocytes. Then a primary oocyte undergoes a first meiotic division creating a secondary oocyte and a first polar body (which dies). Then after the second meiotic division of the secondary oocyte, an ootid (now haploid - i.e. has full set of unpaired chromosomes) results, along with a second polar body (which dies just like the first one). The ootid then develops into an ovum (egg).
