A tiger cub has a pattern of stripes on its fur that is similar to that of its parents. Where are the instructions stored that provide information for a tiger's fur pattern?

A In cytoplasm inside cells

B On genes within chromosomes

C On the cell membrane

D In the mitochondria

B On genes within chromosomes

Explanation:

All information about a cell are encoded in the genes within the chromosomes. A gene is the smallest unit of hereditary in every living organisms. They contains information about the genetic make up of every life.

Genes are made up of deoxyribonucleic acids.

Genes are usually made in pairs which are homologous and code for each of the character states in an organism.

They are usually passed from parents to offspring. They make it possible for traits in parents to be handed down to their offspring.

1- option (A)

2- option (B)

Explanation:

Potassium is widely used in the Potassium-Argon dating method. It is efficient in determining the age of rocks, that is up to about 4 billion years old. Potassium-40 is highly unstable and found to be present in many rocks. It has a very long half-life which is about 1.3 billion years and gives an accurate age of the rocks.

According to the law of Superposition, in a set of horizontal layers of rocks, the rock layers that are at the bottom are the oldest rocks and the rocks that are present at the top are the youngest rocks.

Thus, the correct answers to the given questions are given above.