1. Describe the process in meiosis that ensures that both maternal and paternal chromosomes are passed on to each Spermatozoon

2. Explain why the genetic content of individual chromosomes in a spermatozoon most likely differs from the genetic content of individual chromosomes in a primary spermatocyte

3. In some instances, meiosis of a primary spermatocyte with six chromosomes results in two spermatozoa that contain four chromosomes and two spermatozoa that contain two chromosomes. Predict the most likely cause

4. A student claims that if the animal producing the spermatozoa has a mutation in a mitochondrial gene, the probability that any offspring will inherit the mutation is zero. Provide evidence to support this claim

Transcribed Image Text:

Primary spermatocytes are diploid (2n) cells with all of the organelles typically found in eukaryotic animal cells. A representation of spermatogenesis from a primary spermatocyte with six chromosomes is shown in Figure 1. Secondary Spermatocytes Spermatids Figure 1. A representation of spermatogenesis Spermatozoa Primary Spermatocyte Meiosis I Meiosis II Primary spermatocytes are diploid (2n) cells with all of the organelles typically found in eukaryotic animal cells. A representation of spermatogenesis from a primary spermatocyte with six chromosomes is shown in Figure 1. Secondary Spermatocytes Spermatids Figure 1. A representation of spermatogenesis Spermatozoa Primary Spermatocyte Meiosis I Meiosis II

Answer rating: 100% (QA)

Answer 1 During the Prophase 1 of meiosis there are five sub stages going on They are A Leptotene B Zygotene C Pachytene D Diplotene E Diakinesis Pachytene is the phase which ensures passage of both m... View the full answer