Plant reproduction

Infertility is the inability to conceiver after a year or more of trying. For a couple who hopelessly wished to conceiver, the road to parenthood may be frustrating. Approximately 1 in 10 couples in the United States experience infertility. About 20% of these cases are due to the male partner, 30-40% are due to both partners and the rest is due to the woman. For couples facing infertility issues, the emotional and financial commitments to treatment options can be significant. There are multiple…

Page Title Single Embryo Transfer IVF Success Story Meta Description After a single embryo transfer at our Las Vegas fertility center, this couple got twice what they were expecting: Identical twin girls. Meta Title Single Embryo Transfer IVF Success Story – Las Vegas Fertility Center Comments Live Date (AMY) URL (AMY) Single Embryo Transfer IVF Success Story Single embryo transfer leads to twice the fun for Campbell family For one Las Vegas couple, a single embryo transfer at our Las…

Sexual differentiation in monomorphic avian species Madeleine Evans ID: 213023921, Deakin University Waurn Ponds, Course S323 Biomedical Science, Subject SLE254 Genetic Introduction Sexual differentiation is one of the first biological processes to occur during the development of a foetus. There are a variety of methods for sex determination amongst vertebrates including analysis of primary and secondary differentiations. Primary differentiation refers to the presence of gonads, while secondary…

The Red Panda, otherwise known scientifically as Ailurus fulgens, reproduces sexually and is generally shy and self-contained except when mating. Red Pandas become sexually mature at around 18 months and the approximate gestation period is around 130 days. Births typically occur in spring and summer, although the majority occur in June where the female will have anywhere from one to five cubs with the average being two cubs. The size of the litter, however, does not affect the gestation length…

Female Primates have distinctive features, which differentiate them from other mammals. First off they have fewer offspring than the normal mammals and each birth is more spaced out over time and can be long as years in between births. Primates mother take tons on care of their young, they provide them food and teach them social behaviors and social roles. Primates are identified into six different residence patterns. First there is the One-male and multi-female, this group has one…

Pthirus pubis, also known as pubic lice or crab louse, is an ectoparasite, which is strictly host specific to humans. Pubic lice have three stages: egg, nymph, and adult (CDC, 2017). Pubic lice targets coarse hair at its base and normally remain on its host until it is removed, controlled, or treated. Initially, the female will lay two to three eggs, also known as nits, over the course of twenty-four hours (CDC, 2017). The nits have a whitish in color and have an oval-like structure, with an…

Evolutionary considerations of mate choice date back to Darwin (1871), when he proposed a mechanism know as sexual selection. This proposed mechanism can explain characteristics like plumage of peacocks, fight in elephant seals over females mate, longer neck in giraffes to exhibit dominance in females and so on. These characteristics contradict natural selection (survival of fittest). Sexual selection can be divided into two processes, namely intersexual and intrasexual selection (Buss, 1986).…

Discussion: After analyzing the data from the experiment, we found that the difference between the groups with one male, and those with two males, was not statistically significant as our p-value was well above the accepted value of 0.05. The mean difference in latency to copulation for the two groups was only 1.4 seconds. As seen in the results, the presence of male-male competition does not significantly impact latency to copulation in the Tenebrio molitor species. Our experiment focused on…

The film In the Womb gives the audience much perspective and insight into the complicated process of pregnancy. As defined by the textbook, “vaginal intercourse is the insertion of the penis into the vagina,” which is the only kind of sexual activity that can lead to conception. It is astounding that upon ejaculation, 500 million of the smallest type of human cell travel to the fallopian tubes within the female, but the body ensures that only one sperm can become attached. This is provided that…

Michele Green #3 Manuscript Questions 463 Reproduction 4/28/17 Efficacy of embryo transfer in lactating dairy cows during summer using fresh or vitrified embryos produced in vitro with sex-sorted semen 1) What is the question the authors are trying to answer? - The authors are trying to determine the difference of transferring fresh embryos or vitrified embryos that were made by in vitro with semen that was sorted compared to artificial insemination to see which one improves calving rates as…