The table shows the crossing-over frequencies for three genes in the fruit fly Drosophila. The greater the frequency, the more likely it that crossing over separates the genes. The gene for eye color (A), wing shape (B), and body-color (C) are found on the same chromosome. What are the two most likely sequences of these genes on a gene map for this chromosome? Select two options.

d. in sexual reproduction, offspring have more chromosomes than

either parent.

asexual reproduction results in offspring which are genetically the same as the parent organism (not counting a rare mutation). sexual reproduction produces a random mixture of the genetics derived from both parents

explanation:

meiosis is the correct answer

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.