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Meiosis

QuestionAnswer
Asexual Reproduction Reproduction involving a single parent that produces offspring genetically identical to the parent. Common methods include binary fission, budding, fragmentation, and vegetative propagation
Sexual Reproduction Reproduction involving two parents, producing offspring with a unique combination of genetic material from each parent. It typically involves the formation of haploid gametes via meiosis and their fusion during fertilization
Chromosome A thread-like structure of nucleic acids and proteins found in the nucleus of eukaryotic cells, carrying genetic information in the form of genes
Chromatid One of the two identical copies of a replicated chromosome, joined at the centromere. Each chromatid contains the same DNA sequence
Gene A segment of DNA that contains the instructions for making a specific protein or RNA molecule, which influences an organism’s traits
Allele A variant form of a gene. Individuals inherit two alleles for each gene—one from each parent—which may be the same (homozygous) or different (heterozygous)
Meiosis A type of cell division that reduces the chromosome number by half, producing four haploid gametes from one diploid cell. It includes two rounds of division (Meiosis I and II) and is essential for sexual reproduction
Homologous chromosomes A pair of chromosomes (one from each parent) that are similar in size, shape, and gene content, with corresponding positions for alleles
Tetrad A structure formed during prophase I of meiosis when two homologous chromosomes pair up, each consisting of two chromatids, forming a four-chromatid unit
Crossing Over the exchange of genetic material between non-sister chromatids of homologous chromosomes during meiosis I, increasing genetic diversity
Gamete A haploid reproductive cell (sperm or egg) that fuses with another gamete during fertilization to form a diploid zygote
Diploid A cell containing two complete sets of chromosomes—one set from each parent—denoted as 2n
Haploid A cell containing a single set of chromosomes, denoted as n, such as gametes
Created by: user-2051335
 

 



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