Biology Quiz # 2
Terms
undefined, object
copy deck
- the discredited idea that genes of the parent are averaged in the offspring, like the mixing of paint
- blending inheritance
- Mendel's idea that genes retain their distinct identies as they are passed from one generation to the next.
- particulate inheritance
- two identical allels present in a genotype
- homozygous
- the X and Y chromosomes, whose arrangement govern sex development
- sex chromosomes
- an allele that is expressed only when it is homozygous
- recessive
- two genes that lie close together on the same chromsome, and are usually inherited as a package deal, like white face and blindness in Australian sheep dogs
- linked genes
- the X chromosome in a male has no homologue; alleles on the X have no counterpart on the Y, So the terms homozygous and heterozygous have no meaning in this situation. What is the term for alleles that have no homologous partner
- hemizygous ???
- a population that breeds true for a trait must contain all individuals that have which sort of genotype.
- homozygous
- Alleles like A,B, and O blood group alleles, which exist in more than two forms in various individuals of a population
- multiple alleles
- the appearance of a trait
- phenotype
- the combination of alleles present in an individual
- genotype
- the heterozygous individuals have a phenotype that is intermediate between the phenotypes of the two different homozygotes
- incomplete dominance
- an allele that is expressed equally whether it is homozygous or heterozygous
- dominant
- what is the name for an individual in which different groups of cells in the body are genetically , like two eyes of different colors
- mosaic
- two different alleles present in a genotype
- heterozygous
- a segment of DNA that encodes one protein
- gene
- this part of the flower where the pollen attaches to fertilize the ova
- pistil
- different forms of a gene
- alleles
- the part of a flower that makes the pollen
- anther
- two sets of chromosomes (two copies of every gene)
- diploid
- one set of chromosome ( one copy of every gene)
- haploid
- rules of inheritance
- genetics
-
one gene can cause several phenotic traits
lactose sugar - pleiotropy
- everybody in my family for four generations has blue eyes. What is this term?
- true breeding