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Biology U5 B

Across
One member of a pair of homologous chromosomes is present, such as in a gamete.
The combination of phosphate, sugar, and nitrogen bases in DNA or RNA; the combination of three nucleotides codes a specific amino acid.
A hereditary condition for bleeding due to the inability to clot properly.
The production of haploid male gametes by the male parent.
A nitrogen base found in DNA or RNA; pairs normally with guanine.
First leaf or leaves produced from the seed.
The ancestral history of an individual; a chart showing the history of a trait in the family.
The condition in heterozygotes where both members of an allelic pair contribute to phenotype producing a mixture of phenotypic traits.
Process of development of haploid female gametes.
Down
The presence of different genes on the same chromosome.
A five-carbon sugar.
Failure of chromosomes to segregate during the formation of gametes, resulting in extra or a shortage of chromosomes in the gamete.
A change in the genetic information code.
Refers to a pair of genes for a specific trait in an organism which are different.
A nitrogen base found in DNA; normally pairs with adenine.
An explanation for events which is supported by the results on many experiments by a large number of investigations.
A nitrogen base found in DNA and RNA; normally pairs with cytosine.
A nitrogen base occurring in DNA and RNA; pairs normally with thymine.