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Unit 4

UNIT 4 Vocabulary- Mitosis, Meiosis, & Mutations
Across
The genetic constitutional part of an individual organism
A threadlike structure of nucleic acids and proteins found in the nucleus of most living cells, carrying genetic information in the form of genes
The offspring of two plants animals of different species or varieties such as a donkey and horse which is a mule
One of two more alternative forms of a gene that arise by mutation and are found
The identical copies formed by the DNA replication of a chromosome, with both copies join together by a common centromere
A mature haploid male or female germ cell which is able to unite with another of the opposite sex in sexual reproduction to form a zygote
The allele a gamete receives for one gene does not influence the allele received for another gene
A type of cell division that results in two daughter cells each having the same number.
Having two different alleles of a particular gene or genes
The action or process of an egg and a sperm meet and fertilize to create a zygote
A gene that can be masked by a dominate gene
The resting place between successive mitotic divisions of a cell
Down
The first growth period of the cell cycle, during interphase, in which the cell grows and cytoplasmic organelles are replicated
The set of observable characteristics of an individual resulting from the interaction of its genotype with the environment
Series of events that take place in a cell leading to duplication of its DNA.
Made up of chromosome pairs that are approximately the same length, centromere position and staining pattern, for genes with the same corresponding loci
The phase of the cell cycle in which DNA is replicated, occurring between G1 and G2 phase
The region of a chromosomes to which the microtubules of the spindle attach during the cell division
The cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
A gene that expresses in a person who has only 1 copy of that gene
The second growth period of the cell cycle, following DNA replication and preceding prophase, during which the cell forms the material that make up the spindal
The process by which one diploid eukaryotic cell divides to generate four haploid cells
Carrier of genetic information.
The exchange of genes between homologous, resulting in a mixture of parental characteristics
The process where a single cell divides twice to produce four cell containing half the original amount of genetic information
A unit of heredity which is transferred from a parent to offspring and is held to determine some of the characters of the offspring
The second division in meiosis in which chromatids of each chromosomes are segregated equally into daughter cells
A cell only having a single set of unpaired chromosomes