Answer:
Evolution is not a random process. The genetic variation on which natural selection acts may occur randomly, but natural selection itself is not random at all. The survival and reproductive success of an individual is directly related to the ways its inherited traits function in the context of its local environment.
Explanation: Hope this helps!
Has no backbone I believe I hope I’m not wrong
Ans. (B). Genes.
The chemicals that kill the weeds are known as herbicides. Herbicide-resistance is defined as the inherited ability of weeds to survive an application of herbicide, that can kill a normal weed plant of same species.
The resistance develops due to mutations in genes that were sensitive to those chemicals in wild-type forms. As genes are responsible for transfer of characteristics from one to another generation, the herbicide-resistance is also passed down to generations through genes.
Thus, the correct answer is option (B).
Im not 100% sure but i think its A. Tall mature trees
Answer:
The allele for platinum coat color is lethal in the homozygous condition.
Explanation:
The breeders could not develop a pure-breeding platinum strain, so the foxes with platinum coats must be heterozygous (Pp).
When two platinums are crossed (Pp x Pp), we would expect a 3:1 phenotypic ratio in the offspring, with the dominant trait appearing higher frequency. However, the observed ratio is 82:38 ≅ 2:1
The phenotypic ratio 2:1 appears typically when one of the alleles is lethal in the homozygous condition. In this case, given that the platinum coat color is dominant and cannot be purebred, we can hypothesize that the genotype PP is lethal and does not appear in the offspring.
