Make a claim about whether the karyotype represents a healthy individual in terms of number of chromosomes present? Provide evidence and reasoning.
When one cell undergoes meiosis, what is the result?
4 cells that are genetically different
2 cells that are genetically different
4 cells that are genetically identical
2 cells that are genetically identical
A diploid animal has 12 chromosomes in its blood cell. How many chromosomes does it have in a sperm cell?
12
24
6
3
Which process is illustrated in the diagram?
nondisjunction
replication
independent assortment
crossing-over
The picture depicts what stage of meiosis?
metaphase I
metaphase II
anaphase II
prophase I
Organisms that reproduce asexually have the advantage of being able to quickly colonize a new territory. Organisms that reproduce sexually have the advantage of____.
greater genetic diversity
exploiting more food sources
larger populations
shelter from the elements
Gametes have
twice the number of chromosomes found in body cells
one copy of each chromosome
two sets of chromosomes
homologous chromosomes
Meiosis and fertilization are important for the survival of many species because these two processes result in __________________.
cloning of superior offspring
large numbers of gametes
genetic variation in offspring
increasingly complex unicellular organisms
As a result of fertilization, which of the following normally occurs?
A single sperm and ovum (egg) combine their genetic material to create an offspring with the same number of chromosomes as the parents
A single sperm and ovum (egg) combine their genetic material to create an offspring with half the number of chromosomes as the parents
A gamete is created
The final phase of spermatogenesis is begun
In sexually reproducing organisms, each parent contributes ___________ of the genes acquired by the offspring.