maternal inheritance


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Related to maternal inheritance: Maternal effect

inheritance

 [in-her´ĭ-tans]
1. the acquisition of characters or qualities by transmission from parent to offspring.
2. that which is transmitted from parent to offspring; see also gene, deoxyribonucleic acid, and heredity.
intermediate inheritance inheritance in which the phenotype of the heterozygote falls between that of the two homozygotes.
maternal inheritance the transmission of characters that are dependent on peculiarities of the egg cytoplasm produced, in turn, by nuclear genes.

ma·ter·nal in·her·i·tance

transmission of characters that are dependent on properties of the egg cytoplasm produced by nuclear genes or by mitochondrial genes or both.

maternal inheritance

the transmission of traits or conditions controlled by cytoplasmic factors within the ovum that are not self-replicating and are determined by genes within the nucleus. An example of such a characteristic is the direction of coiling in the shells of snails. Also called maternal effect.

maternal inheritance

Genetics An inheritance pattern displayed by mitochondrial genes that are propagated from one generation to the next through mom; the mitochondria of the zygote come almost entirely from the ovum. See Gene, Inheritance, Mitochondria, Zygote.

maternal inheritance

a form of CYTOPLASMIC INHERITANCE in which genes are passed to the offspring from the female only.

inheritance

1. the acquisition of characters or qualities by transmission from parent to offspring.
2. that which is transmitted from parent to offspring. See also gene, deoxyribonucleic acid and heredity.
Mendelian inheritance is the basis of all genetic practice, but it has limitations in explaining the small differences that occur in a range of offspring of similar and related matings. Galtonian genetics deals specifically with this problem and is better fitted as a tool in population genetics and in dealing with characters that are dependent on a number of chromosomal loci rather than on a single locus.

autosomal inheritance
controlled by genes located on autosomes.
intermediate inheritance
inheritance in which the phenotype of the heterozygote falls between that of either homozygote.
maternal inheritance
the transmission of characters that are dependent on peculiarities of the egg cytoplasm produced, in turn, by nuclear genes.
X-linked inheritance
References in periodicals archive ?
In maternal inheritance, male plastids do not participate in the zygote, because they are excluded during pollen development (early) or pollen-tube growth (late).
Furthermore, maternal inheritance of the plastome was demonstrated in ferns (Gastony and Yatskievych, 1992).
The emerging challenge in the field is the identification of a role for mitochondrial genes in disorders that occur sporadically and without a clear pattern of maternal inheritance.

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