If integration of DNA provided by pronuclear injection occurs after three cell divisions, the resulting mouse will
A) not contain the transgene in any cells.
B) be a mosaic of cells with some cells containing the transgene and others not.
C) contain the transgene in only germ cells.
D) contain the transgene in only somatic cells.
B) be a mosaic of cells with some cells containing the transgene and others not.
You might also like to view...
Species that retain the eggs within the female but do not nourish them via a placenta are:
A. ovoviviparous B. viviparous C. oviparous D. hermaphroditic E. parthenogenetic
Smallpox is a disease in which
A. recurrent episodes are called shingles. B. the virus becomes latent in ganglia of sensory neurons. C. fever, malaise, and rash occur. D. transmission occurs by direct contact with skin crusts. E. All of the choices are correct.
In the context of biodiversity, genetic diversity consists of
A. the amount of genetic variation that occurs between species B. the amount of genetic variation that occurs within and between species C. the amount of genetic variation that occurs within and between populations D. all the alleles and transcription factors within a species E. the amount of genetic variation that occurs in an individual
One parent carries a dominant allele (AL) that is lethal in early life in homozygotes. The other parent is homozygous for the wild type allele (A+) of the same gene. What is the expected dominant:wild type phenotype ratio for their offspring?
A) 100:0 B) 75:25 C) 50:50 D) 25:75 E) 0:100