Search Results for: diploid
Parthenogenesis
To reproduce, by definition, means to produce new offspring. The process is referred to as reproduction, which is one of the... Read More
Sporophyte
Sporophyte Definition What is a sporophyte? Accordingly, the sporophyte is the plant generation that produces spores. To... Read More
Sexual reproduction
Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male... Read More
Vascular plants
Definition of Vascular plants The term 'vascular' is derived from the Latin word vāsculum, vās, meaning "a container and... Read More
Homozygous
Homozygous Definition Diploid organisms that have a genotype of identical alleles for a trait or phenotype at a specific... Read More
Allotetraploid
Allotetraploid Definition An allotetraploid is an organism with four sets of chromosomes (4n). This is in contrast to the... Read More
Polyploidy
Reviewed by: Mary Anne Clark, Ph.D. Polyploidy Polyploidy is defined as the state of being polyploid, which... Read More
Chromosome
Chromosomes Definition Chromosomes are thread-like structures present in the nucleus of plant and animal cells. Chromosomes... Read More
Meiosis and Alternation of Generations
Review of Mitosis: Cell Cycle The cell cycle contains the process in which cells are either dividing or in between... Read More
Cytokinesis
The cell cycle of eukaryotes is a cyclical series of biological events that certain asexual cells go through. The cell cycle... Read More
Independent Assortment
Independent Assortment Definition Independent assortment refers to the alleles or genes that sort into the newly formed... Read More
Law of Independent Assortment
Law of Independent Assortment Definition noun (genetics) Mendelian law stating that for every pair of unit factors, each... Read More
Meiosis – The Genetics of Reproduction
The genetic information found in DNA is essential in creating all the characteristics of an organism. This remains the case... Read More
Haplodiploidy
Definition noun A biological system of sex determination as observed in the Hymenopteran species (e.g. ants and bees) where... Read More
Multiple alleles
Alleles are the pairs of genes occupying a specific spot called locus on a chromosome. Typically, there are only two alleles... Read More
Sporophyte generation
Definition noun (botany) A phase in the life cycle of certain plants and algae that starts with the union of gametes up to... Read More
Autopolyploidy
Definition noun (genetics) A type of euploidy wherein the additional set of chromosomes is derived from a parent or... Read More
Arrhenotoky
Definition noun A form of parthenogenesis wherein male offspring develops from an unfertilized... Read More
Homologous chromosome
A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and... Read More
Plant cell
Plant Cell Definition A plant cell refers to any cell of a plant. It is the structural and functional unit of plants. Plant... Read More
Gametogenesis
Gametogenesis (Science: biology) process leading to the production of gametes. The development and maturation of sex cells... Read More
Hemizygosity
Definition noun A genetic condition where there is only one copy of a gene in an otherwise diploid cell or... Read More
Law of Segregation
Mendel’s Laws of Inheritance The father of genetics, Gregor Mendel, reported his findings in 1860 that initially were... Read More
Gametophyte generation
Definition noun (botany) A phase in the life cycle of certain plants and algae that starts with a spore up to the time that... Read More
Spermatogenesis
Spermatogenesis Definition Spermatogenesis is the biological process of producing sperm cells. It occurs in the male gonad... Read More
Family traits
When one thinks of family, they often think of persons who are blood-related to each other as parents to their children and... Read More
Polyploidy
Definition noun (genetics) The state of being polyploid, that is more than two sets of the chromosomes in a... Read More