Biology, 17.01.2020 22:31 shayhiddinovxasan93

Nondisjunction during meiosis results in an abnormal number of chromosomes in one or more gametes. in some cases of nondisjunction, a single chromosome fails to separate. in others, none of the chromosomes separate. suppose an egg is produced in which none of the chromosomes separate during meiosis ii. what is the chromosome number of the zygote that results if this egg is fertilized by a normal sperm?

Answers: 3

Show answers

Another question on Biology

Biology, 22.06.2019 02:50

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?

Answers: 1

Answer

Biology, 22.06.2019 07:30

Climate warming trends allow plant and insect species to inhabit larger ranges. select the best answer from the choices provided

Answers: 2

Answer

Biology, 22.06.2019 09:30

2. does the given statement describe a step in the transformation of the graph off(x) = x2 that would result in the graph of g(x) = -5x + 2)? a. the parent function is reflected across the x-axis. o yes nob. the parent function is stretched by a factor of 5. yes noonc. the parent function is translated 2 units up.o yes

Answers: 2

Answer

Biology, 22.06.2019 15:30

(me out over the last several centuries, scientists have made the following broad observations while investigating several branches of the life sciences: -the fossil record shows that different types of organisms have existed at different times in earth's history. -many organisms have similar body structures that seem to be adapted to different ways of living in their environment. -organisms of different species often share similarities in stages of embryonic development. -many species share genetic similarities, and almost all organisms use the same basic building blocks to construct proteins. -often, the extent of two species' similarities can be predicted from their geographic closeness to each other. -a great deal of change has been observed among species that have experienced strong selective pressures through many generations. scientists have carefully considered and rigorously tested the observations listed above. when scientists offer a of these observations, they are making 1.) testable explanation, deductive explanation 2.) scientific interference, scientific law

Answers: 3

Answer

You know the right answer?

Nondisjunction during meiosis results in an abnormal number of chromosomes in one or more gametes. i...

Questions

Biology, 25.07.2019 19:30

When animals are placed in controlled or restrictive environments, they?...