En un campo crían toros. En el ganado vacuno la ausencia de cuernos tiene carácter dominante sobre la presencia de cuernos (recesivo). El hombre a cargo del campo desea obtener una línea pura (homocigota recsiva) de toros con cuernos al primer intento de cruzamiento entre una vaca y un toro. Para esto te pide ayuda a vos. El toro A es heterocigota porque no posee cuernos pero su padre si tenía cuernos
El toro B tiene cuernos
La vaca A No tiene cuernos pero su madre tenía
Y la vaca B no tiene cuernos y sus padres eran ambxs homocigotas dominantes.

a) Escribí los genes que posee cada animal

b) ¿Qué cruzamientos tendrían que realizar si el vecino quiere obtenes animales

sin cuernos?

c) ¿Cuál es la probabilidad de obtener un ternero con cuernos al cruzar el toro A

con la vaca A?

ayudaaa :((

1. glaciers are melting

2. more water going into ocean (water's such as fresh waters, etc)

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !

i need