Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 34591
TLS Online TPP Program

#Question id: 4761

which of the following statements about a lethal allele is not correct?

#8. Inheritance Biology

  1. lethal alleles are always recessive.

  2. lethal alleles may have a late age of onset.

  3. lethal alleles may be caused by mutations in essential genes.

  4. lethal alleles may affect one individual differently than another

More Questions
TLS Online TPP Program

#Question id: 5070

#5. Developmental Biology

During juxtacrine pathway, notch protein is activated by the neighbouring cells which expresses:
TLS Online TPP Program

#Question id: 5072

#5. Developmental Biology

Movement of epithelial cells as a unit to enclose deeper layers of the embryo. This type of cell movement during gastrulation occur in:
TLS Online TPP Program

#Question id: 5073

#5. Developmental Biology

The emergence of the polarity of an embryo is the result of:
TLS Online TPP Program

#Question id: 5074

#5. Developmental Biology

The "mid-blastula transition" is the point in development when:
TLS Online TPP Program

#Question id: 5076

#5. Developmental Biology

Homeotic genes are responsible for:
TLS Online TPP Program

#Question id: 5077

#5. Developmental Biology

Humans and mice heterozygous for loss-of-function mutations in Pax6 have: