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The genetic material are the
Chromosome
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Genetic blue prints of proteins are
Genes or DNA segments
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Human cell contains ______ pairs of autosomes and _____ sex chromosomes.
22, 2
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Diploid chromosomal component of the humans is called
Karyotype
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The genetic DNA makeup of the humans is called
Genome
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2 mismatched genes on the same locus on a homologous chromosome are
Alleles
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When 2 alleles control single trait they are considered _____ for that train
homologous
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When 2 alleles are dissimilar and differ in their expression they are called
Heterozygous
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In general _____ allele masks _____ allele.
Dominate, recessive
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Genetic makeup of a trait is called
genotype
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Expression of a genotype in the body is called
Phenotype
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Crossing over give rise to ______ chromosomes
recombinant
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Independent assortment, crossing over and random fertilization cause
Genetic variation
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Human traits are determined by
Multiple alleles or interaction of several gene pairs
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Checkered square to find possible combination of genes for 1 trait is
Punette square
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Inability to form cartilage bone is
achondroplasia
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Normal vision is a phenotype of
Recessive gene expression
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Albinism, cystic fibrosis, and Tay-Sach's syndrome: examples of
Recessive gene expression
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Consanguineous marriages are prohibited to avoid inheritance of
recessive genes
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Sickle Cell anemia is an example of
Incomplete dominance
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Hair ear pinnae is example of _____ linked inheritance.
Y (sex)
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Example of multiple allele inheritance is
Blood group
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Interaction of many genes to express a single trait is
Polygene inheritance
-
Skin and eye color, intelligence and height are examples of
polygene inheritance
-
Thalidomide babies have _____ like limbs.
Flipper
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Newborn screening helps to identify
Hip dysplasia, phenylketonuria, and imperfrate anus.
-
Genetic screening helps to identify
Down, Huntington disease
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Representative differential analysis helps to identify
Mutant gene causing disease
-
Hemophilia in the royal family of Britain is identified by
Pedigree analysis
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Aminocentesis helps in ______ the embryo.
Karyotyping
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Chorionic villa sampling is done by taking snips of chorionic villa from
Placenta
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A member of a pair of chromosome is called
homolog
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Aa gene alleles represents
heterozygosity
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Change in the DNA structure is called
Mutation
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Crossing over increases the chances of production of
New phenotypes
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Division of centromere and separation of chromatids takes place in
metaphase
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