Spinal muscular atrophy (SMA) type I shows autosomal recessive inheritance. Assuming complete penetrance, if two heterozygous individuals have two children, what is the probability that the first child will be unaffected and the second child will be unaffected?  

Blood type is determined by two genes.  At least 1 dominant H gene allele is needed to build the H antigen: HH or Hh = H antigen, i.e., normal; hh = no H antigen, i.e., Bombay If an individual has the H antigen (i.e., is not Bombay), the I gene then determines blood type O, blood type A, blood type B or blood type AB (IAIA or IAi = blood type A; IBIB or IBi= blood type B; IAIB = blood type AB; ii = blood type O).                             H gene                                                                I gene              HH or Hh = H antigen; hh = Bombay)                                  (ii = blood type O)                                                                                IAIB = type AB; IAIA or IAi = type A; IBIB or IBi = type B)                         Bombay                          →                          H antigen                                  →                   blood types A, B, or AB What is the phenotype of the following individual: HhIAi?

Brittle bone disease type 1 shows autosomal dominant inheritance. Daniel is an affected male who would like to have a child with his unaffected partner but is worried about transmitting the affected allele to offspring. Daniel’s mother was also affected, but his father was not. Assuming complete penetrance, what is the expected phenotype of his offspring? 

Hegemonic sports culture is routinely perceived as: 

According to the book Offside, which of the following is the closest to the definition of “Hegemonic Sport Culture “?

There are no deciduous molars.

The rule of 4 and 9 states that 09 is:

Three rooted teeth are found in

At what age should the adult canine teeth be fully erupted in dogs and cats?

What is the part of the tooth that is the hardest substance in the body?