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TLS Online TPP Program
#Question id: 19121
#Unit 8. Inheritance Biology
Trisomy 18 is one of the most common trisomies observed in human populations. You prepare DNA samples from two unrelated infants, both with trisomy 18, and from their parents. You then type the infants and their parents for four SSRs distributed along chromosome 18:
In which parent did nondisjunction occur in Family 2?
TLS Online TPP Program
#Question id: 19122
#Unit 8. Inheritance Biology
Trisomy 18 is one of the most common trisomies observed in human populations. You prepare DNA samples from two unrelated infants, both with trisomy 18, and from their parents. You then type the infants and their parents for four SSRs distributed along chromosome 18:
In which division of meiosis did nondisjunction occur in Family 2?
TLS Online TPP Program
#Question id: 24564
#Unit 8. Inheritance Biology
A one type of nondisjunction leads to regions of tissue with different chromosome constitutions, a condition known as
TLS Online TPP Program
#Question id: 24565
#Unit 8. Inheritance Biology
A particular trait that are determined by autosomal genes and are inherited according to Mendel’s principles, this particular trait has higher penetrance in one of the sexes is known as
TLS Online TPP Program
#Question id: 24566
#Unit 8. Inheritance Biology
In some sheep, the presence of beard is produced by an autosomal allele that is dominant in males and recessive in females. A beard female is crossed with a homozygous beardless male. One of the resulting F1 females is crossed with a beardless male. What proportion of the male and female progeny from this cross will have beard in F2 generation?
TLS Online TPP Program
#Question id: 24567
#Unit 8. Inheritance Biology
In goats, a beard is produced by an autosomal allele that is dominant in males and recessive in females. If cross the beardless female with heterozygous beard male, what will be the proportion of female beard in F1 generation?