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IB Prep Genetics
Terms in this set (44)
Type of reproduction that doesn't require two individuals mixing genetic material. Can occur through cloning.
Pertaining to the body chromosomes. Chromosomes 1-22 are considered this type of chromosome.
Series of steps that all cells go through in order to grow and synthesize new parts.
center portion of a chromosome that hold the sister chromatid together in the middle.
half of a full chromosome. One side of the full X.
the term used for DNA when it is NOT in chromosome form
tightly wound DNA and Histone Proteins that condense during cell division.
phenomenon that occurs when homologous chromosomes swap genes when they are lined up together. This increase the possible gene combinations of offspring.
the stage where two cells are pinching apart and become two new daughter cells. Occurs right after telophase in animal cells.
the end product of the process of mitosis. One cell becomes two of these.
Having 2n, or pairs of, chromosomes in the cell.
This is the process of a male and female gametes joining.
a haploid sex cell. Sperm or egg.
the process of making gametes
an embryonic cell with the potential of developing into a gamete.
having half the usual numbers of chromosomes. "n"
proteins that bind with DNA to form chromosomes
type of chromosomes that shares the same genes and gene loci of another chromosome.
the number and visual appearance of the chromosomes in the cell nuclei of an organism or species
a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells.
a part of the cell cycle when replicated chromosomes are separated into two new nuclei
process of making female reproductive cells; eggs
the last pair of chromosomes in humans. XX and XY. 23rd Pair
refers to either of the two identical copies (chromatids) formed by the replication of a single chromosome
a standard body cell
process of making male reproductive cells; sperm
the fusion of chromosome pairs at the start of meiosis.
A four-part structure that forms during the prophase of meiosis and consists of two homologous chromosomes, each composed of two sister chromatids.
a fertilized egg (2n)
the study of heredity and the variation of inherited characteristics
the physical appearance that is the result of gene activity.
the passing on of physical or mental characteristics genetically from one generation to another.
having two different alleles Aa
the likelihood of inheriting a certain phenotype or genotype.
having two of the same alleles AA or aa
a form of intermediate inheritance in which one allele for a specific trait is not completely expressed over its paired allele.
A form of dominance in which the alleles of a gene pair in a heterozygote are fully expressed thereby resulting in offspring with a phenotype that is neither dominant nor recessive. (Blood Typing)
an allele that is masked by another, more dominant, allele
a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
the combination of letters (genes) that an organism possesses. AA, Aa, or aa
an allele that is expressed in the phenotype over a recessive allele.
versions of a gene. "A" versus "a"
type of genetics that is related to the 23rd pair of chromosomes in humans, or the gender chromosomes in other organisms.
a genealogical table where parent and offspring genetics are mapped.
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