When the offspring is produced, the genes and dna are twisted into different patterns that can only be carried once.
Answer:
b. What is the difference between dominant and recessive traits? Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists. Recessive traits are expressed only if both the connected alleles are recessive.
c. In the simplest possible terms, purebreds are the offspring that result from mating between genetically similar parents while hybrids are the offspring that are the result of mating between two genetically dissimilar parents.
Explanation:
In comparison, the group 1 elements, including hydrogen (H), lithium (Li), and sodium(Na), all have one electron in their outermost shells. This means that they can achieve a stable configuration and a filled outer shell by donating or losing an electron.
Answer:
By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other. Often we can work out how and where they lived, and use this information to find out about ancient environments. Fossils can tell us a lot about the past.
Explanation:
I believe the most VALID answer to your question is "Homeostasis".
Organisms that carry out homeostasis do so in order to maintain a constant, optimum environment for the cells within their body.