Biology Matching Crossword
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
 
 
Down: 1) 2) a sex cell: a haploid egg or sperm. the union of two gametes of opposite sex( fertilization) produces a zygote3) the region of a duplicated chromosome where two sister chromatids are joined ( often appearing narrow in the waist) and where spindle microtubules attach during mitosis and meiosis it divides at the onset of anaphase during mitosis and anaphase 2 during meiosis4) the first sign of cytokinesis during cell division in an animal cell: a shallow groove in the cell surface near the old metaphase plate6) 7) 8) the 2 chromosomes that make up a matched pair in a diploid cell. homologous chromosomes are of the same length, centtormere position, and staining pattern and possess genes11) 12) a means of asexual reproductionin which a parent organism, often a single cell , divides into two genetically identical individuals of about equal size15) 16) the creation of genetically identical offspring by a single parent, without the participation of sperm and egg19) An interaction between nonallelic genes, especially an interaction in which one gene suppresses the expression of another21) in an organism that reproduces sexually, a cell containing two homologous sets of chromosomes, one set inherited from each parent: a 2n cell23) 26) the exchange of segments between chromatids of homologous chromosomes during synapsis in prophase 1 of meiosis also, the exchange of the segments between dna molecules in prokaryotes27) the offspring of two parental (p generation) individuals: f 1 stands for first filial28) a double membrane across the midline of a dividing plant cell, between which the new cell wall forms during cytokinesis30) 32)  Across: 3) inheritance pattern in which a heterozygote expresses the distinct trait of both alleles5) the 4th stage of mitosis beginning with sister chromatids separate from each other and ending with a complete set of daughter chromosomes arrives at each of the two poles of the cell9) the period in the eukaryotic10) 13) having two identical alleles for a given gene14) 17) 18)  The total genetic content contained in a haploid set of chromosomes in eukaryotes, in a single chromosome in bacteria, or in the DNA or RNA of viruses. An organism's genetic material 20) in the life cycle of an organism that reproduces sexually, a cell containing a single set of chromosomes: an n cell22) 24) 25) 29) 31) a type of inheritance in which the phentypesof the heterozygotes and dominant homozygote are indistinguishable33) the make up of an organism34) The probability that an event can occur in two or more alternative ways is the sum of separate probabilities of the different ways35) 36) having two different alles for a given gene37) a type of inheritance in which the phenotype of a heterozygote(Aa) is intermediate between the phenotype of the two types of homozygotes ( AA and aa)38) a chromosome not directly involved in determining the sex of an organism in mammals any chromosome other than x or y39) The offspring of the F1 generation: f2 stands for second filial40) 41) 42) 
 

 

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