BB LEMAR NOTES (P1-P3) Flashcards
humans have ___ pairs of autosome and ___ set of chromosomes, females (xx) and males (xy), giving a total of __ chromosomes in diploid cells.
22 ; 1 ; 46
classical principles of inheritance defined by the moravian monk _______ in 1866
GREGOR MENDEL
classical principles of inheritance:
1st law of genetics (________) stated that hereditary characteristics are determined by particulate units (presently called _____) that occur in an individual as pairs (diploid), but in the formation of _______ they segregate so the gamete contains only one member of the pair (____)
LAW OF SEGREGATION ; GENES ; GAMETES/GERM CELLS ; HAPLOID
2nd law (_______) stated that the particulate units (genes) that determine diff. characteristics are inherited independently of other units (if the genes are close to one another on chromosome, they’ll be inherited together)
LAW OF INDEPENDENT ASSORTMENT
Chemical basis of heredity and the carrier of genetic infos for all organism
DNA
Structure of DNA: ______ which consists of what?
double helix of polymers of nucleotides, each consisting of one of the nitrogen-containing bases (Adenine, Thymine, Cytosine, Guanine), Sugar Deoxyribose, and Phosphate
Nucleic Acid that controls protein synthesis in all living cells.
RNA
RNA has three diff. types and all are derived from the info encoded in the DNA of the cell. What are the 3?
Messenger RNA, Transfer RNA, Ribosomal RNA
type of RNA that carries the code for specific amino acid sequences from the DNA to the cytoplasm for protein synthesis
mRNA
type of RNA that carries the amino acid groups to the ribosome for protein synthesis
tRNA
type of RNA which exists within the ribosomes, thought to assist in protein synthesis
rRNA
refers to individual’s actual genetic makeup
GENOTYPE
refers to outward expression of genes (e.g., blood type); on blood cells, serologically demonstrable antigens
Phenotype
1 of 2 or more diff. genes that may occupy a specific locus on a chromosome
Allele
Possessing a pair of identical alleles
Homozygous
Possessing different alleles at a given gene locus
Heterozygous
Trait or characteristic that will be expressed in the offspring even though it is carried on only one of the homologous chromosome.
Dominant
Type of gene that, in the presence of its dominant allele, does not express itself; expression occurs when it is inherited in the ____________ state.
RECESSIVE ; homozygous state
Gene that does not appear to produce a detectable antigen; a silent gene, such as ___, ___, ___
AMORPH ; Jk, Lu, O
(CHROMOSOMAL LOCATIONS OF MAJOR BLOOD GROUP SYSTEMS)
CHROMOSOME: 1
LOCUS: ?
Rh, Duffy
(CHROMOSOMAL LOCATIONS OF MAJOR BLOOD GROUP SYSTEMS)
CHROMOSOME: 4
LOCUS: ?
MNS
(CHROMOSOMAL LOCATIONS OF MAJOR BLOOD GROUP SYSTEMS)
CHROMOSOME: 7
LOCUS: ?
KELL
(CHROMOSOMAL LOCATIONS OF MAJOR BLOOD GROUP SYSTEMS)
CHROMOSOME: 9
LOCUS: ?
ABO
(CHROMOSOMAL LOCATIONS OF MAJOR BLOOD GROUP SYSTEMS)
CHROMOSOME: 18
LOCUS: ?
KIDD