A cell undergoes a nuclear division and separation of the cytoplasm, after which the number of cellular organelles is doubled, and cell size increases greatly. However, a malfunctioning enzyme (helicase) prevents separation of the DNA strands.
What is the consequence of this malfunction?
Anaphase during the G1 phase cannot occur.
Anaphase during the Sphase cannot occur.
DNA replication during the G1 phase cannot occur.
DNA replication during the Sphase cannot occur.

Babies with very low or very high weight are less likely to survive .

Agene with the original sequence of atgtt—tact underwent substitution mutation to form atatt—tact after a few generations. tact is a part of a muscle protein encoding region, and atgtt codes for a digestive enzyme. what will be the effect of this mutation? a. the production of muscle protein will be affected. b. the production of digestive enzymes will be affected. c. the production of both the protein and the enzyme will be affected. d. the production of neither the protein nor the enzyme will be affected.

Parasitism could be considered a form of which of these types of relationships? -mutualism -commensalism -predator-prey -mimicry