Search Results for: paired
Telophase I
Definition noun The stage in the first meiotic division after anaphase I, and identified by the complete movement and... Read More
Anaphase I
Definition noun The third stage in the first meiotic division after prophase I, and highlights the separation of paired... Read More
Chromosomes X and Y and Sex Determination
Reviewed by: Mary Anne Clark, Ph.D. In humans, the normal chromosome complement is 46, consisting of 22 pairs of... Read More
Pair-rule gene
Definition noun A segmentation gene whose expression subdivides the embryo into a series of stripes, and sets the boundaries... Read More
Deoxyribonucleic acid
Deoxyribonucleic Acid (DNA) Definition A nucleic acid refers to any of the group of complex compounds made up of linear... Read More
Prophase I
Organisms all use mitosis to create more cells in the body. Meiosis, a similar process, is used in some organisms to undergo... Read More
Unconditioned stimulus
An unconditioned stimulus inherently triggers an automatic response, not reliant on deliberate prior learning. In contrast... Read More
Law of Purity of Gametes
Definition noun (genetics) Gregor Mendel's law stating that the unit factors are brought together and paired during union or... Read More
Genetic material
Genetic Material Definition What is genetic material? Genetic material is the hereditary substance in the cell. It carries... Read More
Homozygous
Homozygous Definition Diploid organisms that have a genotype of identical alleles for a trait or phenotype at a specific... Read More
Complementary base pairing
'''complementary base pairing The standard arrangement of bases in nucleotides in relation to their opposite pairing, such... Read More
Angiosperm
Angiosperms Definition What is an angiosperm? An angiosperm is a plant that produces flowers. The angiosperms, also... Read More
Stem and loop structure
stem and loop structure (Science: molecular biology) The structure of tRNAs is so termed because it has four base paired... Read More
Monogenic inheritance
Definition noun A form of inheritance that follows Mendel's Law of Heredity Supplement Monogenic inheritance refers to the... Read More
Neutral stimulus
Definition noun, plural: neutral stimuli In classical conditioning, it is the type of stimulus that initially or normally... 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
Non-sister chromatid
Definition noun, plural: non-sister chromatids Either of the two chromatids of any of the paired (homologous)... Read More
Incomplete dominance
Incomplete Dominance Definition After Gregor Mendel discovered inheritance laws, the term ''incomplete dominance'' was... Read More
Chondrichthyes
Definition noun A taxonomic class comprised of cartilaginous fish Supplement Chondrichthyes is taxonomic superclass of... Read More
Kingdom Animalia
Kingdom Animalia Definition Each person can say that they know of or can name at least one animal. However, do people know... Read More
Thoracic cavity
Definition noun The body cavity of the human body (and other animal bodies) protected by the thoracic walls, and located... Read More
Genetic Information and Protein Synthesis
Genetic Code Genes are sequences of DNA nucleotides that carry and transmit the information specifying amino acid sequences... Read More
Digastric muscle
Digastric Definition The digastric muscle is a paired muscle located under the jaw, consisting of the anterior and... Read More
Respondent conditioning
Definition noun A form of conditioning or associative learning first demonstrated by Ivan Pavlov (a physiologist,... Read More
Cranial nerve
Definition noun, plural: cranial nerves Any of the paired nerves emerging from the brain (including the brainstem but not... Read More
Classical conditioning
Definition noun A form of conditioning or associative learning first demonstrated by Ivan Pavlov (a physiologist,... Read More
Phenotypic ratio
Phenotypic Ratio Definition How would one define phenotypic ratio? The correlation between the amount of offspring that... Read More
Nucleobase
Definition noun plural: nucleobases (biochemistry) The base in the nucleic acid, e.g. purines and pyrimidines Details ... Read More
Water in Plants
The movement of molecules, specifically water and any solutes, is vital to understand in light of plant processes. This will... 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
Human Reproduction
Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More
Chemical Composition of the Body
In order to fully understand the mechanisms of human physiology, it is important to have an understanding of the chemical... Read More