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Compare asexual and sexual reproducing organisms.
Of these two different modes of reproduction, in which do the
offspring most resemble their parents?
Describe what features of the reproductive mode explain your answer.

2007-03-04 16:31:55 · 4 answers · asked by Anonymous in Science & Mathematics Biology

4 answers

Asexual reproduction by definition prevents translocation of chromosomes and therefore will have offspring that are closer if not identical to the parent. This is because when there is sexual reproduction, the offspring takes genes from both parents and will have features of both parents, whereas asexual reproduction is from a single parent. I said in asexual reproduction they are closer because there is always the possibility of random mutation which can affect phenotype.

2007-03-04 16:42:07 · answer #1 · answered by misoma5 7 · 0 0

Asexual reproduction is a form of reproduction which does not involve meiosis, haploid formation, or fertilization. In laymen's terms, there is only one "cell" involved. This form of reproduction is common among simple organisms such as amoeba, bacteria, and other single-celled organisms, and most plants reproduce asexually as well. Because it does not require male participation, asexual reproduction occurs faster than sexual reproduction and requires less energy. Additionally, asexual reproduction produces an exact replica of the parent because of the lack of genetic recombination. From an evolutionary standpoint, one could thus argue that asexual reproduction is inferior because it stifles the potential for change. However, there is also a significantly reduced chance of mutation or other complications that can result from the mixing of genes. A 2004 article in the journal Nature reported that the modern arbuscular mycorrhizal fungi, which reproduces asexually, is identical to fossils records dating back to the Ordovician period, 460 million years ago. While on the other hand, sexual reproduction is a type of reproduction that results in increasing genetic diversity of the offspring. It is characterized by two processes: meiosis, involving the halving of the number of chromosomes; and fertilization, involving the fusion of two gametes and the restoration of the original number of chromosomes. During meiosis, the chromosomes of each pair usually cross over to achieve genetic recombination. In other words, “The production of a new living thing by two parent organisms; with each parent contributing half the material in the DNA of the offspring. The young, genetically different from either parent, can rapidly adapt to their environment by means of natural selection”.

2007-03-05 01:21:36 · answer #2 · answered by Sherwin R 2 · 0 0

asexual--one parent, most resemble parent chromosomes from parent are copied and offspring is identical
sexual-two parents , the chromosomes from each parents are split to form a unique offsrping

2007-03-05 01:31:18 · answer #3 · answered by Emm t 2 · 0 0

Asexual..Thats because they are exact genetic copies of the parent...

2007-03-05 00:39:13 · answer #4 · answered by Joey D 3 · 0 0

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