Sexual reproduction is a union that results in increasing genetic diversity of the offspring.
The Problems to be Solved
Sexual reproduction is the formation of a new individual following the union of two gametes. In humans and the majority of other eukaryotes — plants as well as animals — the two gametes ...
Sexual reproduction is a biological process by which organisms create descendants through the combination of genetic material. These organisms have two different adult sexes, male and female.
sexual reproduction -- A type of reproduction in which two parents give rise to offspring that have unique combinations of genes inherited through the gametes of the two parents. Sexual reproduction involves meiosis and syngamy.
Sexual Reproduction and Evolutionary Change
Variation
Later in this course, we will discuss how sexual reproduction acts to increase variation in populations by shuffling genes.
sexual reproduction A system of reproduction in which two haploid sex cells (gametes) fuse to produce a diploid zygote. PICTURE ...
Sexual reproduction. The process where two cells (gametes) fuse to form one hybrid, fertilized cell. See Asexual reproduction, Gamete, Hybrid.
Sexual reproduction
Formation of new individual by a combination of two haploid sex cells (gametes).
Fertilization- combination of genetic information from two separate cells that have one half the original genetic information ...
Sexual reproduction occurs only in eukaryotes. During the formation of gametes, the number of chromosomes is reduced by half, and returned to the full amount when the two gametes fuse during fertilization.
sexual reproduction, reduction division, crossing over, kinetochore, microtubule
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sexual reproduction Reproduction involving fusion of gametes.
sexual selection Selection in relation to mating.
Meiosis and Sexual Reproduction
There is a special kind of cell division that occurs exclusively in the gonads (ovaries and testes) of eukaryotic organisms. This special cell division is called meiosis.
Anisogamy: Sexual reproduction in which one sex produces sex cells much larger (egg) than those of the other (sperm).
Well, this is a really important part of human biology and the biology of many other organisms that go through sexual reproduction. Basically, here's the problem: You've got a certain number of chromosomes; we humans have 46.
MEIOSIS - IT'S FOR SEXUAL REPRODUCTION
What are the big ideas here? There are two cell divisions. Mitosis has one division and meiosis has two divisions. You still have to remember PMATI, but now you do it twice.
Gametophytes, hidden in plant / sexual reproduction forms multicellular zygotes
Sporophytes, what we call plant / asexual reproduction to form spores that germinate into gametophytes ...
(Science: cell biology) a process in sexual reproduction that involves the union of male (sperm) and female (ovum) gametes (each with a single, haploid set of chromosomes) to produce a diploid zygote.
This process is intended to simulate the analogous process of recombination that occurs to chromosomes during sexual reproduction.
the division of chromosomes previous to sexual reproduction in plants and animals in which the normal diploid, somatic number of chromosomes is reduced to the monoploid (haploid), single number; same as meiosis ...
Conjugation a type of sexual reproduction in which the contents of the male gamete cell go over into and unite with the female cell
(con = with‚ together; juga = a yoke; -tion = process of‚ action of) ...
Amphimixis
Union of gametes in sexual reproduction.
Related Terms:
Gamete
Mature male or female reproductive cell (sperm or ovum) with a haploid set of chromosomes (23 for humans).
amplexus - [Latin, an embracing] form of sexual reproduction seen in frogs wherein the male grasps the female from behind and externally fertilizes the eggs as they are deposited.
Mutation generates new genes but, unlike higher eukaryotes, bacteria do not undergo sexual reproduction; the typical bacterium simply grows, replicates its DNA, and divides.
In instances of sexual reproduction, the cellular process of meiosis is first necessary so that haploid daughter cells, or gametes, can be produced.
- Mode of asexual production in which there is no fusion of gametes but the structure involved are commonly concerned in sexual reproduction.
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[L. fero - to bear]. The formation of a single-celled zygote through the union of male and female gametes that occurs in sexual reproduction.
Fertilization: The joining or fusion of the male gamete (sperm) and the female gamete (egg) to form a zygote during sexual reproduction. See also gamete, zygote.
Blastomere separation (sometimes called "twinning" after the naturally occurring process that creates identical twins_ involves splitting a developing embryo soon after fertilization of the egg by a sperm (sexual reproduction) to give rise to two or ...
fertilization [L. fero - to bear]. The formation of a single-celled zygote through the union of male and female gametes that occurs in sexual reproduction.
 See also: Reproduction, Sexual, Organ, Plant, Animal
  
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