false
False. Cystic fibrosis is caused by a mutation in the CFTR gene, which is a recessive allele. An individual must inherit two copies of the mutated gene (one from each parent) to develop the condition.
False. Genetic drift is more likely to occur in small populations where chance events can have a greater impact on allele frequencies. In large populations, genetic drift is typically less influential compared to other evolutionary forces.
In the strict sense, no. Mutations happen to individuals and are only heritable in the germ line. Populations have allele frequencies in their gene pools. So, the mutation must be beneficial, lucky enough that it original carrier passes it on intact and that it is driven into the populations gene pool in sufficient number, by having reproductive success, to change allele frequencies.
False. Blood type genes have two dominant alleles (A and B), and one recessive (O). When a person gets one A allele and one B allele, they then have the blood type AB. Both are expressed equally. In other genes, a dominant allele might not be completely dominant, allowing the recessive allele to be partially expressed.
False. A gene pool typically contains multiple alleles for each inheritable trait, as individuals within a population can have different variations of a gene. This genetic variation allows for diversity within a population and can play a role in evolution.
false
In heterozygous individuals, only the dominant allele is expressed. The recessive allele is present, but not expressed
false
false
False
False. Cystic fibrosis is caused by a mutation in the CFTR gene, which is a recessive allele. An individual must inherit two copies of the mutated gene (one from each parent) to develop the condition.
This needs a lot more explaination
False, bone contains capillaries.
A ray has no endpoints true or false
False
False, Sickle Cell Disease :))