Textbook Question
________ are segments of DNA that code for a specific protein, and the human ________ includes over 20,000 of these segments.
29. Heredity
Overview of Human Genetics
Back29. Heredity
Overview of Human Genetics
- Multiple ChoiceA person without a Y chromosome will __________.1views
- Open Question
Compare and contrast amniocentesis and chorionic villus sampling as to the time at which they can be performed and the techniques used to obtain information on the fetus’s genetic status.
1views - Multiple ChoiceHow many chromosomes are present in a normal human somatic cell?
- Multiple ChoiceWhy does Duchenne Muscular Dystrophy (DMD) primarily affect boys, and what type of inheritance pattern does it follow?
- Multiple Choice
If the two alleles for a particular gene are identical the gene pair is:
- Multiple ChoiceWhat sex chromosome combination is associated with Turner syndrome?
- Multiple ChoiceHow many total chromosomes does a human body (somatic) cell have?
- Multiple ChoiceDuring meiosis, how many chromosomes does a human gamete have?
- Multiple ChoiceHow many chromosomes do human somatic (non-reproductive) cells contain?
- Multiple ChoiceWhich of these presents an ethical issue associated with genetic testing on humans?
- Multiple ChoiceHow many chromosomes do human body cells contain after meiosis?
- Multiple ChoiceHow many total autosomes do human cells have?
- Multiple ChoiceThe appearance of freckles is considered the __________.1views
- Open Question
Match each of the following key terms (a–i) with its description
below:
Key:
(a) alleles
(b) autosomes
(c) dominant allele
(d) genotype
(e) heterozygote
(f) homozygote
(g) phenotype
(h) recessive allele
(i) sex chromosomes
____ (1) genetic makeup
____ (2) how genetic makeup is expressed
____ (3) chromosomes that dictate most body characteristics
____ (4) alternate forms of the same gene
____ (5) an individual bearing two alleles that are the same for a particular trait
____ (6) an allele that is expressed whether in single or double dose
____ (7) an individual bearing two alleles that differ for a particular trait
____ (8) an allele that must be present in double dose to be expressed
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