click below
click below
Normal Size Small Size show me how
Gentics
Unit 4 section 3
| Question | Answer |
|---|---|
| What are nucleotides? | Basic building blocks of DNA |
| What is genotype? | Genetic makeup of an organism |
| What is phenotype? | Physical result of expression of genotype & interaction with environment |
| What makes up DNA? | 2 long chains of sugar and phosphate molecules |
| What makes up the bond that holds pairs of bases along the DNA strand? | Hydrogen bonds |
| What are the paired bases? | adenin (A) & thymine (T) OR guanine (G) & cytosine (C) |
| How many chromosomes does a rabbit have? | 22 pairs |
| How many chromosomes does a dog have? | 39 pairs |
| How many chromosomes does a cat have? | 19 pairs |
| What is the place along the chromosome where the gene is located called? | Loci/locus |
| What is it called when an individual carries the same allele on each chromosome? | Homozygous |
| What is it called when an individual carries 2 different alleles on each chromosome? | Heterozygous |
| What is RNA involved with? | Protein synthesis, transport of genetic information |
| What percentage of mammalian cells are RNA? | 1% |