STAAR Test Question - Include or Remediation?
LOW - Evolutionary mechanisms can either increase or decrease genetic variation
K/S - Gene flow, mutations, and genetic recombination increase genetic variation in species.
Evolution is a gradual change in species over many generations. There are several mechanisms which contribute to these observed changes.
Which mechanisms increase genetic diversity in populations? Select THREE correct answers.
STAAR Test Question - Include or Remediation?
Medium - Classify examples of gene flow, genetic drift, mutation and genetic recombination
K/S - Given scenario of change in environment, will it increase/decrease of genetic variation/diversity
Common baboons live on the savanna in breeding groups called troops. While females tend to stay with group, younger or less dominant males may leave to join a neighboring troop. Which of these is a likely outcome of movement by young males?
STAAR Test Question - Include or Remediation?
Medium - Classify examples of gene flow, genetic drift, mutation and genetic recombination
K/S - Given scenario of change in environment, will it increase/decrease of genetic variation/diversity
Lord Howe Island is a volcanic island in the Tasman Sea that is about 11km long and 2.8km wide. The island has two species of palm trees. Howe forsteriana and the more abundant Howe belmoreana. The two species do not interbreed even when they grow very close to each other. Which evolutionary process fails to occurs.
STAAR Test Question - Include or Remediation?
LOW - Evolutionary mechanisms can either increase or decrease genetic variation
K/S - Gene flow, mutations, and genetic recombination increase genetic variation in species.
The concept of gene flow is demonstrated when a cow is driven off from its hear, joins another heard, and reproduces. When the cow contributes to the gene pool of the new heard, which of these most likely increases?
STAAR Test Question - Include or Remediation?
Medium - Classify examples of gene flow, genetic drift, mutation and genetic recombination
K/S - Given scenario of change in environment, will it increase/decrease of genetic variation/diversity
Two populations of mice living in the same forest are separated by a large water-filled ditch. After a rainstorm, flood brings several mice from one population to the other population. When the nice from the population reproduce with member of the second population, which of the following will likely occur?