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Down: 1) is a proposed explanation for a set of observations, an idea on trial.2) having two identical alleles.4) replicated6) the study of whole sets of genes and their interactions.7) inherited11) a type of inheritance in which the phenotype of a heterozygote is intermediate between the phenotypes of the two types of homozygotes AA and aa12) the division of a single nucleus into two genetically identical daughter nuclei.14) having two different alleles17) the control of more than one phenotypic character by a single gene.20) cytoplasm is divided in two, usually begins before mitosis is complete.21) has an effect on the phenotype22) the synthesis of a polypeptide using the genetic information encoded in an mRNA molecule.24) a substance that decreases the hydrogen ion concentration in a solution.26) in eukaryotes, a nonexpressed portion of a gene that is excised from the RNA transcript.28) the organism;s genetic makeup.30) in eukaryotes, a coding portion of a gene. Across: 3) much broader in scope than a hypothesis.5) the expressed trait of an organism,organisms appearance.8) an alternative version of a gene.9) containing two sets of chromosomes in each cell, one set inherited from each parent.10) the additive effect of two or more genes on a single phenotypic characteristic.13) the division of a single nucleus into two genetically identical daughter nuclei.15) a three- nucleotide sequence in mRNA that specifies a particular amino acid or polypeptide termination signal, the basic unit of a genetic code.16) accounts for 90% of the cell cycle or cells life.18) does not effect the phenotype19) the synthesis of RNA on a DNA template.23) the scientific study of heredity.25) genes located close enough together on a chromosome that they are usually inherited together.27) sex linked29) a unit of inheritance in DNA consisting of specific nucleotide sequence that programs the amino acid sequence of a polypeptide.31) a change in the nucleotide sequence od DNA, a major source of genetic diversity.32) the expression of two different alleles of a gene in a heterozygote.33) the identification, naming, and classification of species.34) the division of a single diploid cell into four haploid daughter cells.
 

 

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