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Inheritance and Evolution
12
chromosome: a thread of DNA, made up of a string of genes
gene:a length of DNA that is the unit of heredity and codes for a specific protein
inheritance: the transmission of genetic information from generation to generation
haploid nucleus: a nucleus containing a single set of unpaired chromosomes
diploid nucleus: a nucleus containing two sets of chromosomes
growth: a permanent increase in size and dry mass by an increase in cell number or cell size or both
development: an increase in complexity
mitosis: nuclear divisionin which the chromosome number is maintained by the exact duplication of chromosomes
meiosis: reduction division in which the chromosome number is halved from diploid to haploid
allele: any of the two or more alternative forms of a gene
homozygous:having two identical alleles of a particular gene
heterozygous:having two different alleles of a particular gene
Inheritance and Evolution
Across:3. | reduction division in which the chromosome number is halved from diploid to haploid | 4. | a permanent increase in size and dry mass by an increase in cell number or cell size or both | 6. | a length of DNA that is the unit of heredity and codes for a specific protein | 7. | a nucleus containing a single set of unpaired chromosomes |
| 8. | any of the two or more alternative forms of a gene | 9. | the transmission of genetic information from generation to generation | 10. | a thread of DNA, made up of a string of genes |
| | Down:1. | an increase in complexity | 2. | having two identical alleles of a particular gene | 5. | a nucleus containing two sets of chromosomes |
| 7. | having two different alleles of a particular gene | 11. | nuclear divisionin which the chromosome number is maintained by the exact duplication of chromosomes |
| |
© 2012
PuzzleFast.com, Noncommercial Use Only
Inheritance and Evolution
Across:3. | reduction division in which the chromosome number is halved from diploid to haploid | 4. | a permanent increase in size and dry mass by an increase in cell number or cell size or both | 6. | a length of DNA that is the unit of heredity and codes for a specific protein | 7. | a nucleus containing a single set of unpaired chromosomes |
| 8. | any of the two or more alternative forms of a gene | 9. | the transmission of genetic information from generation to generation | 10. | a thread of DNA, made up of a string of genes |
| | Down:1. | an increase in complexity | 2. | having two identical alleles of a particular gene | 5. | a nucleus containing two sets of chromosomes |
| 7. | having two different alleles of a particular gene | 11. | nuclear divisionin which the chromosome number is maintained by the exact duplication of chromosomes |
| |
© 2012
PuzzleFast.com, Noncommercial Use Only