What is the term for the cells that will eventually undergo meiosis to produce gametes? Assuming that independent assortment occurs during meiosis, what type(s) of gametes will form in individuals with the following genotypes? a) AABB b) AaBB c) Aabb d) AaBb ...
What type of cells undergo binary fission, somatic or gametes? How is self-fertilization different from asexual reproduction? What is produced as a result of meiosis? How does sexual reproduction lead to genetic variation? (a) What is an independent assortment in meiosis? (b) How does...
To answer the question regarding the type of cell division that occurs in the cells of the upper layer of the epidermis, cells of the lining of the gut, and blood cells, we can follow these steps:1. Identify the Types of Cells:
These trajectory maps depicted the progression of germ cells, as they undergo from germline stem cells (GSCs), through mitotic cells and meiotic cells, toward mature oocytes (Fig. 4a,b and Extended Data Fig. 4a). The unsupervised scVelo model computed the initial and terminal states within the...
gene mei3+, and have shown the following: a null allele of mei3 totally inhibits meiosis; the mei3+ RNA transcript and its translational product are expressed only in matP+/matM+ diploids entering meiosis; forced expression of mei3+ in vegetative cells provokes haploid meiosis and sporulation...
Thermosensitive male sterility (TMS) is a heritable agronomic trait influenced by the interaction between genotype and environment. The anthers of plants are composed of various specialized cells, each of which plays different roles in plant reproduction
In response to nutrient deprivation, diploid budding yeast cells undergo gametogenesis to form four stress-resistant haploid gametes, called spores. This process is known as sporulation and is comprised of a specialized cell division, meiosis, to produce haploid gametes from a diploid precursor and a...
Interestingly, in female plants of dioecious Silene, the smut can cause masculinisation of the phenotype and the formation of anther-like structures (Ruddat et al.., 1991). Teliospores undergo meiosis on the host plant, and the resulting haploid cells bud off sporidia that eventually ...
‘homeodomains’) HD1 and HD2, one in each mating type.MATαcells express a DNA-binding protein (alpha-box protein) that activates transcription of its alpha sex pheromone, as well as receptors to sense the pheromone secreted by compatible cells of theMATamating type. TheMATacells have a ...
The genus Neurospora also includes homothallic species--ones in which a single haploid nucleus carries all the information necessary to form fruiting bodies, undergo meiosis, and produce new haploid spores. One such species, N. terricola, contains one copy each of the A and the a sequences ...