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chpt 24 practice
bio 118 unit 5
| Question | Answer |
|---|---|
| assume simple dominance, furthermore, assume that dominant allele "S" is for smooth skin, and recessive allele "s" is for bumpy skin, if parents with Ss and SS genotypes were to mate, what percent of their offspring will have bumpy skin? | 0% |
| also known as a trait that is easily seen or measured | phenotype |
| a male genotype | XXY |
| identical alleles are said to be | homozygous |
| an individual who has allele for brown eyes and an allele for blue eyes is said to be | heterozygous |
| the body becomes less able to cope with the demands placed on it | senescence |
| voluntary muscular control is achieved; child learns to walk, run climb | childhood |
| may have some memory loss =, but intellect usually stays sharp | adulthood |
| uses store fats and colostrum for energy | neonatal |
| communication begins smiling, laughing, responding to some sounds may speak a few words | infancy |
| growth spurts occur in skeletal and muscular systems | adolescence |
| practice: alleles are: | different versions of a gene |
| what determines the biological gender of a child | the presence of a Y chromosome |
| this can be defined as an "inheritance which two different alleles in a heterozygote are both equally expressed and blood groups would be an example | codominance |
| the SRY gene is described as coding for a | transcription factor |
| this term can be defined a having a normal number of chromosomes for human organism | euploid |
| assume simple dominance, furthermore, assume that dominant allele "S" is for smooth skin, and recessive allele " s" is for bumpy skin. if parents with Ss and SS genotypes were to mute, what percent of their offspring will have bumpy skin | 0% |
| the punnet square listed below has a cross between two heterogenous individuals that are carriers for sickle cell anemia. this is recessive disorder and is listed as "r" in this diagram and Ris normal. what genotype listed below refers to a carrier of thi | Rr |
| a change from the normal, or common gene variant | mutant |
| variant form of a gene | allele |
| the appearance of a trait or health condition that develops as a result of the ways the genes are expressed | phenotype |
| the combination of gene variations for a particular gene | genotype |
| in a heterozygote, the gene that determines the phenotype is known as the ________allele | dominant |
| if an individual has cystic fibrosis and this is an autosomal recessive trait and "C" is the normal allele and " c" is the recessive allele for cystic fibrosis. what would the genotype be for a person who has the disease | cc |
| the study of inheritance of characteristics is called______ | genetics |
| practice: cell-free fetal DNA testing analyzes | fetal DNA fragments in maternal blood |
| what is the name of the segment of DNS that codes for a protien | gene |
| practice: Down syndrome is most commonly | trisomy 21 |
| in ABO inheritance, genotype AO procedures blood type | type A |
| Practice: nondisjunction is | failure of chromosomes to separate during meiosis |
| missing or gaining an extra chromosome (e.g. trisomy 21) is known as | aneuploidy |
| what is the name of the procedure when the fluid is removed from the abdominal wall, cells are cultured for chromosomal abnormalities and has and has the lowest risk for miscarriage of the child called_______ | amniocentesis |
| if AB x OO, possible child blood types include | type A and type B |
Created by:
muvamayi