Science Q1, W3 - Chromosomes Flashcards
Found tightly packed in the nucleus of eukaryotic cells.
Chromosomes
The total number of chromosomes in every human body cell.
2 pairs of 23, making up 46
Made on tiny spaghetti-like structures called chromosomes.
Genes
Genetic plan of the organism, blueprint of life.
DNA
Father of modern genetics.
Gregor Johann Mendel
Carriers of genes
Chromosomes
This attaches chromosomes to one another
Centromere
refers to the entire set of genes in a cell, an organism, or an individual.
Genotypes
is the physical appearance
or other characteristic of an organism
Phenotypes
a square grid used in genetics to calculate the frequencies of the different genotypes and phenotypes
The Punnett Square
Contains genes that code for traits
unrelated to the sex of the individual, humans have 22 pairs of _ and one pair of sex chromosomes (XX orXY).
Autosomes
Contain genes that code for the sex of the individual as well as other traits.
Sex Chromosomes
This is when neither form of the gene is able to mask the other.
Incomplete dominance
Neither allele is dominant and both alleles show up individually in the phenotype.
Codominance