Males, on the other hand, are heterogametic, with one X chromosome and one Y chromosome. Other reptiles governed by GSD have a system, similar to one found in birds, with Z and W sex chromosomes. In this caseâwhich governs all snake speciesâmales are the homogametic sex (ZZ) and females are the heterogametic sex (ZW).
Yosemite Packing List. Your trip with Four Season Guides is sure to be one you never forget, but a big part of having lots of fun is being well prepared! Even though we provide the camping equipment essentials, there are a few things we want to be sure you donât forget! Hiking boots â well broken in!! Mid-weight boots with ankle support are best.
Plan how you will get there. It is about a four-hour drive from San Francisco and about a six-hour drive from Los Angeles. A Vehicle Pass is $20 and works for seven days; an Individual Pass, for people on foot, bus, bicycle, or horse, is $10. The Yosemite Pass is $40 and lasts for one year.There are no car rentals in the park.osemite Valley is the crown jewel of the Sierra Nevada mountains. It's located inside Yosemite National Park, about 150 miles (240 km) due east of San Francisco. If you want to plan a trip to this amazing place, but don't know where to start, read this article!