Ch 6 Vocab Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Term | Definition |
somatic cell | body cells that make up most of your body tissues and organs |
gametes | sex cells, ova, or eggs, in the female, and spermatozoa, or sperm cells, in the male |
homologous chromosomes | two chromosomes, one inherited from the mother and one from the father, that have the same length and general appearance |
atuosomes | chromosomes that contain genes for characteristics not directly related to the sex of an organism |
sex chromosomes | chromosomes that directly control the development of sexual characteristics |
sexual reproduction | involves the fusion of two gametes, resulting in offspring that are a genetic mixture of both parents |
fertilization | actual fusion of an egg and a sperm cell |
haploid | a cell has only one copy of each chromosome |
meiosis | a form of nuclear division that divides a diploid cell into haploid cells |
gametogenesis | the production of gametes |
sperm | the male game that is much smaller than the egg |
egg | the female game that is much bigger than the sperm |
polar bodies | cells with little more than DNA that are eventually broken down |
traits | distinguishing characteristics that are inherited |
genetics | the study of biological inheritance patterns and variation in organisms |
purebred | gentically uniform, or a line of plants that have self-pollinated for long enough |
cross | the mating of two organisms |
law of segregation | two of Mendel's three conclusions or Mendel's first law |
gene | a piece of DNA that provides a set of instructions to a cell to make a certain protein |
allele | any of the alternative forms of a gene that may occur at a specific locus |
homozygous | descrbies two of the same alleles at a specific locus |
heterozygous | describes two different alleles at a specific locus |
genome | all of an organism's genetic material |
genotype | typically refers to the genetic makeup of a specific set of genes |
phenotype | the physical characteristics, or traits, of an individual organism |
dominant allele | the allele that is expressed when two different alleles ro two dominant alleles are present |
recessive allele | the allele that is expressed only when two copies are present |
punnett square | a grid system for predicting all possible genotypes resulting from a cross |
monohybrid corsses | crosses that examine the inheritance of only one specific trait |
testcross | a cross between an organism with an unknown genotype and an organism with the recessive phenotype |
dihybrid crosses | crosses that examine the inheritance of two different traits |
law of independent assortment | Mendel's second law of genetics that states that allele pairs separate independently of each other during gamete formation, or meisosis |
probability | the likelihood that a particular event will happen |
crossing over | the exchange of chromosome segments between homologous chromosomes during prophase 1 of meiosis1 |
genetic linkage | genes located close together ted to be inherited together |
Created by:
Scientific Eagles
Popular Biology sets