A researcher observes a unicellular organism reproducing asexually. The daughter cells are genetically identical except for a few minor variations. Which mechanism is MOST likely responsible for these variations?
Crossing over during mitosis
Independent assortment of chromosomes
Random mutations during DNA replication
Conjugation with another individual
Related Questions
Which of the following is NOT a characteristic of asexual reproduction?
Produces genetically identical offspring
Involves the fusion of gametes
Can occur through methods like budding and fragmentation
Generally faster than sexual reproduction
Which of the following statement is not true for a clone?
A clone inherits the age of the donor organism.
A clone is genetically identical to the donor organism.
A clone may have a different mitochondrial DNA than the donor organism.
A clone's phenotype can be influenced by environmental factors.
Which of the correct example of the type of regeneration out of the two major types?
Morphallaxis–regeneration of two transversely cut equal pieces of one Hydra into two small Hydras
Epimorphosis –replacement of old and dead erythrocytes by the now ones
Morphallaxis-healing of wound in the skin
Epimorphosis-regeneration of crushed and filtered out pieces of Planaria into as many new planarian
Which of these is an advantage of asexual reproduction?
Genetic diversity
Rapid population growth
Adaptation to changing environments
Requires two parents
All of the following are true about Mendel's law of independent assortment EXCEPT:
It occurs during metaphase I of meiosis
It explains the inheritance of two or more genes relative to one another
It produces new combinations of alleles
It applies only to genes located on the same chromosome
Which statement is FALSE concerning the polarity of water molecules?
It arises from the unequal sharing of electrons between oxygen and hydrogen.
It contributes to the formation of hydrogen bonds.
It allows water to dissolve many ionic compounds.
It causes ice to be less dense than liquid water.
Identify the INCORRECT statement regarding Mendel's experiments:
Recessive traits are always expressed in the F1 generation.
Traits are inherited as discrete units.
The F2 generation exhibits a 3:1 phenotypic ratio for a monohybrid cross.
Alleles segregate during gamete formation.
Consider the following statements and choose the correct option.
I. The genetic constitution of a plant is unaffected in vegetative propagation.
II. Rhizome in ginger serves as an organ of vegetative reproduction.
III. Totipotency of cells enables us to micropropagate plants.
Statements I and II alone are true
Statements II and III alone are true
Statements II alone is true
All the three Statements I, II and II are true
In which one pair, both the plants can be vegetatively propagated by leaf pieces?
Bryophyllum and kalanchoe
Chrysanthemum and Agave
Agave and kalanchoe
Asparagus and Bryophyllum
Which of the following statements is incorrect regarding the properties of water?
Water has a high specific heat capacity.
Water is a polar molecule.
Ice is denser than liquid water.
Water molecules form hydrogen bonds.
