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Human males have a dark spot on the edge of the nucleus (bar body) identifying the inactive x chromosome
A carrier of a recessive genetic disorder usually does not express any symptomes of the disease
Mitosis followed by cytokinesis is teresponsible for all of the following except
Production of egg and sperm
If you view a cell in which gentic material is beginning to be visible as seperate bodies, and the nuclear envelope has disappeard from view, you may surmise that the cell is in
Chromosomes that come from different parents yet are the same size and have the same genetice composition are
All but one of the following are characteristc of cancer cells choos the EXCEPTION
Essentially normal funcioning cells.. they just have lost control of cell division
A leading cause of human reproductive failure and miscarriages is due to the fetus having an ancorrect number chromosomes whish is the cause
nondisjunction of chromosomes in meiosis 1 or 2
Homozygous dominant (AA) homozygous recessive (aa) and heterozygous (Aa) are terms used to describe and individuals
Type AB blood is an example of ___ which means that the heterozygous display two phenotypes at the same time
Duchenne muscular dystrophy is inherited from an X-linked recessive allele. What is the probability that a son with Duchenne MD inherited this disease from his biological father
If a pure-breeding long tail cat is crossed with a pure breeding cat with no tail, cand a cat with a chort tail, is produced the simplist explinaition is
an incompletely dominat gene
If one parent has type a blood and the other parent has type b then which of the following is possible in the children
A, B, AB, and O
Traits such as human eye color and height demonstrate continuous variations bc
they are influenced by several genes
Which of the following can be determined by and individuals karyotype?
The number and structual composition of an individuals chromosomes
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