NEW
Font size
WorksheetsBiology SB1c & SB3c
Total questions: 12
Worksheet time: 6mins
What is the purpose of interphase in the cell cycle?
active cell growth and cytokinesis
active growth and metabolism of the cell
active division of the plasma membrane before mitosis
None of These
What occurs during G1 and G2 in the cell cycle?
synthesis of the cell
Growth of DNA
growth of the cell
None of the these
Hydras are organisms that can reproduce sexually or asexually. A particular population of hydra are widely distributed in a large, stable environment. In this situation it is more advantageous for the hydra to reproduce–
asexually, so that only a small number of offspring will be produced
asexually, so individuals don’t have to spend energy looking for mates
sexually, so the genetic variation of the population will increase.
sexually, so offspring can move more easily into a new environment.
An organism is living in a rapidly changing environment. Sexual reproduction is advantageous to an organism in this situation because–
sexual reproduction produces more offspring than asexual reproduction within a given time period.
sexual reproduction produces offspring with more variation, some of which may be better adapted to a new environment.
sexual reproduction requires more time to complete, allowing the environment to become more stable.
offspring produced by sexual reproduction grows to maturity more rapidly
Scientists can determine whether a colony of sea anemones was produced sexually or asexually by ___________.
counting the number of individual polyps
Examining the diet of each polyp
Examining the genetic diversity of each polyp
Looking at environmental stability over time.
Which of the following is a characteristic of asexual reproduction?
It involves male and female gametes.
It produces genetically identical offspring.
It produces small number of offspring.
It is most common in humans
In meiosis, the original cell is __________ . This means it has __________ sets of chromosomes.
diploid; 2
diploid; 3
haploid; 2
haploid; 3
Which examples demonstrate the growth of an organism as a result of mitosis? Select all that apply
a seed becoming a plant
a plant withering in the sunlight
skin flaking off your arm in the winter
None of these
After duplication, at what point does a cell become two cells with identical DNA?
starting in prophase
end of anaphase
end of cytokinesis
at the end of interphase
SB1b. A diagram of meiosis is provided below. The diagram clearly represents meiosis because of which of the following items?
The process happens in exactly three steps.
The number of chromosomes remains constant throughout.
The end result is cells with half the genetic material.
There is a representation of genetic mutation.
A diagram of mitosis is provided. The diagram demonstrates which of the following?
Mitosis produces cells that contain one half of the genetic material of the parent cells.
Mitosis produces cells that contain twice the amount of genetic material as the parent cells.
Mitosis produces cells with genetic material not found in the parent cell.
Mitosis produces cells that are genetically identical to their parents.
While providing many advantages, sexual reproduction presents which of the following disadvantages for sexually reproducing organisms? Sexual reproduction–
requires the expenditure of energy to find mates.
fails to provide new genetic combinations.
always results in overpopulation and limited resources
leads to an increase in the appearance of harmful mutations.
