Chapter 6 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
Question | Answer |
somatic cell | body cells that make up most tissues and organs |
gamete | sex cells |
homologous chromosome | two chromosomes that have the same length/ general appearance |
autosome | chromosomes that contain genes for characteristics not directly related to the sex of an organism |
sex chromosome | directly control development of sexual characteristics |
sexual reproduction | involves fusion of two gametes |
fertilization | actual fusion of egg and sperm cell |
diploid | cell has two copies of each chromosome |
haploid | cell has only one copy of each chromosome |
meiosis | form of nuclear division that divides a diploid cell into haploid cells |
gametogenesis | production of gametes |
sperm | male gamete |
egg | female gamete |
polar body | cells with little more than DNA that are eventually broken down |
trait | distinguishing characteristics that are inherited |
genetics | study of biological inheritance patterns and variation in organisms |
purebred | line of a self-pollinated organism |
cross | the mating of two organisms |
law of segregation | Mendel's two key conclusions |
gene | 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 | two of the same alleles at a specific locus |
heterozygous | two different alleles at a specific locus |
genome | organism's genetic material |
genotype | genetic makeup of a specific set of genes |
phenotype | physical characteristics of an individual organism |
dominant | allele that is expressed when two different alleles/ two dominant alleles are present |
recessive | allele that is expressed only when two copies are present |
Punnett square | grid system for predicting all possible genotypes resulting from a cross |
monohybrid cross | cross that examines the inheritance of only one specific trait |
testcross | cross between an organism with an unknown genotype and an organism with the recessive phenotype |
dihybrid cross | crosses that examine the inheritance of two different traits |
law of independent assortment | states that allele pairs separate independently from each other during meiosis |
probability | likelihood that a particular event will occur |
crossing over | exchange of chromosome segments between homologous chromosomes during prophase I of meiosis I |
genetic linkage | genes located closer together tend to be inherited together |
Created by:
kaseywallace
Popular Biology sets