Down syndrome (trisomy-21 ) is the only human autosomal trisomy in which the individuals may survive to adulthood
Indicate whether the statement is true or false
TRUE
You might also like to view...
What is the -35 consensus sequence for the following sequences?
A) TTGATA B) TATGAT C) TATTAT D) ACAA E) TAGTAT
Why are X-linked recessive genetic disorders more commonly seen in males?
a. For an X-linked disorder to occur, an individual must receive one allele only found on the X chromosome and a second allele found only on the Y chromosome, which females do not have. b. Females must receive two copies of the recessive allele to exhibit the disorder, but males need only one copy. c. The alleles of sex-linked genes are carried only on the Y chromosome, which females do not have. d. Females only have X chromosomes and genes on the X chromosome are not expressed.
What type of enzyme regulation is illustrated here?
a. allosteric inhibition
b. allosteric activation
c. feedback inhibition
d. dehydration inhibition
The seed plants became dominant in the late ___ when the climate became ___.
a. Cambrian---wetter b. Carboniferous---drier c. Carboniferous--wetter d. Cretaceous---drier e. Cretaceous---wetter