Some organisms are capable of asexual or sexual reproduction. Under favorable conditions, reproduction proceeds asexually. When conditions become more stressful reproduction switches to a sexual mode. Why?   Question options:   Sexual reproduction is simple and more rapid allowing larger numbers of offspring to be produced.   Sexual reproduction requires two separate individuals, who can mutually provide nutrient support during stress.   Sexual reproduction produces individuals with new combinations of recombined chromosomes increasing diversity.   Asexual reproduction requires more energy.

Why is there a need for mitosis and meiosis? Are there characteristics that make them redundant? Explain. If you created an organism, would you use mitosis or meiosis in reproduction? Why? Provide two examples in nature of organisms that only use one process.

Humans have ___ matching chromosomes. A human cell contains these ___ chromosomes because we go through a process called ___________ reproduction.  In this process gametes are made which each contain only ___ of each chromosome.  Then during ___________, a zygote receives one of each chromosome: ___ from Dad’s sperm & ___ from Mom’s egg.  This is what restores the __________ number of chromosomes (46 for humans) that are necessary for life to continue.

Offsprings produced by asexual reproduction are referred to as clones. Why?

In the process of asexual reproduction, what is passed from the original cell to its offspring? its phenotype   its genotype   its RNA   its ribosomes

Which statement best describes the process of crossing over? Homologous chromosomes pair up, and non-sister chromatids exchange genetic material.   Homologous chromatids pair up, and non-sister chromosomes exchange genetic material.   Pairs of homologous chromosomes are divided in half and distributed randomly into new haploid cells.   Pairs of homologous chromatids are divided in half and distributed randomly into new diploid cells.

___ reproduction produces clones of the parent.   Gemmule   Meiotic   Eukaryotic   Translation   Mitotic

The nuclear envelope is broken into smaller components. Kinetochore microtubules are assembled and are connected to kinetochores. Name: The chromosomes become aligned in a plane at the cellular equator. Name:

Which cell replicates via meiosis? red blood cell skin cell heart cell sperm cell

Which one of the following options describes the relationship between sister chromatids? They are the same: same DNA sequence, same genes, same alleles of those genes They are similar: similar DNA sequence, same genes, may have different alleles of those genes They are different: different DNA sequences, different genes