Biology 2 exam 1 Crossword
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
                                                    
 
 
Down: 1) theory preceeding Mendel that staed that once parental traits blended in the offspring, they are inseperable2) a family tree describing heritable traits in parents and offspring3) segment of DNA that codes for a trait, you have 2 genes for each trait, one from each parent4) a cross to examine one trait, first offspring (F1) generation is heterozygous5) gene pairs that define a trait (Aa)7) a protein found in the extracellular matrix of connective tissue8) Mid 1800's, gathered evidence from different parts of the world to develop his idease on who passes on traits to whom9) a 3rd gene having to do with melanin production can short circuit the whole pigment system.10) fusion of gametes from 2 parents to observe the result in the offspring11) determines sex, X & Y in humans13) a chromosome that does not determine sex, 22 out of 23 pairs14) a heritable feature (flower color)15) molecular forms of a gene, A or a17) first offspring generation, usually heterozygous19) parental generation, usually 2 homozygotes20) a heterozygous individual with one potentially harmful recessive allele shows no signs of a disorder22) sex chromosomes + autosomes24) where the gene lies on a chromosome27) the scientific study of heredity and hereditary variation Across: 6) monk from Vienna, Austria. 1860's worked with breeding garden peas and observed the apperance of the plants he bred12) the union of 2 haplod gametes to form a diploid zygote16) a population can change over tiem when they differ in traits that can be passed from one generation to the next18) the physical apperance define by gene pairs, their interactions and the environment21) a gamete has 1 allele for each trait23) when one gene has multiple phenotypic effects. ex sickle cell anemia25) second offspring generation, usually represented by a predictable phenotypic ratio26) crossing an unkown individual with a dominant phenotype to a homozygous recessive individual to determine the genotype28) a tool used to perform crosses29) 2 alleles for traits will segregate into different gametes (during meiosis)30) an adult has 2 alleles for each trait31) both alleles are separately and equally expressed in the phenotype32) alleles on different chromosomes (non-linked) will assort independently of one another33) the production of haploid gametes for sexual reporduction
 

 

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