By conducting testcrosses, researchers have found that the apple has 17 linkage groups. How many chromosomes would you expect to find in leaf cells?

In a DNA strand, a 5′ phosphate is connected to

Positive supercoiling can

Two genes are 36 map units apart. In a testcross, what percentage of offspring is expected to be recombinants?

Some fish have bony fins.  If the body of water they are in dries out, these fins can be used to help the fish “walk” to another body of water.  In this context, bony fins are an example of ________.  

As observed in four o’clocks, a maternal inheritance pattern can be explained by

Billy works for Big Construction Company as a highway construction worker. Over the weekend, on his days off from work, Billy went hang-gliding. Unfortunately, during his adventure, he accidently crashed into a tree and was severely injured. He was sent to the hospital and treated for his injuries. The cost of putting casts on both of his arms and both of his legs was quite substantial = $50,000. Additionally, Billy will now not be able to work his construction job for at least 4 months while he recovers from his injuries.  The hang-gliding accident itself is an example of which of the elements of an exposure? 

The Endangered Species Act aims to help protect species that ________.  

Speedy Scooters is a company that manufactures and sells electric scooters. It was recently discovered that its newest model scooter was built with a faulty battery. Many customers have already reported after only a few hours of use the battery would overheat: destroying the electric engine; and in some extreme cases actually catching on fire. In all cases, the customer’s scooter was rendered inoperable. And in the extreme cases, the scooter was completely destroyed by the spontaneous combustion and the customers actually reported minor burn injuries.  From the perspective of Speedy Scooters – the above scenario is an example of which quadrant of risk? 

With regard to a maternal effect gene, a mother is dd and her haploid oocyte (d) is fertilized by a sperm carrying the D allele.  Which gene products would be found in this fertilized oocyte?