| A | B |
|---|
| cystic | fibrosis |
| carrier | heterozygous for a recessive trait |
| man | only one hemophilic allele to express the trait |
| four | possible number of group phenotypes |
| down | trisomy 21 |
| anemia | shortage of red blood cells |
| brown | large amount of melanin |
| polygenic | shows traits that are governed by more than one gene |
| red | determine by the type on the surface ______ blood cells |
| trait | genetic characteristic |
| syndrome | group of symptoms with a single cause |
| Turner | a syndrome produces a sexually poorly developed female ed |
| alleles | multiple ____ result from different muatationsof the same gene |
| phenylketonuria | phenylalanine cannot be broken down |
| ultra | sound is helful in detecting twins |
| influenced | baldness is a sex-___ trait |
| CVS | chorionic villus sampling |
| sex | gene expressed only in individuals of one sex are called ____limited genes |
| inborn | enzimes are missing is a ____ error of metabolism |
| DNA | best-known class of blood proteins |
