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Archy [21]
4 years ago
6

Imagine that five hypothetical genes are arranged on a chromosome in the following order: G--H--I--J--K. Which two genes are mos

t likely to have a crossover occur between them?
Biology
1 answer:
andrezito [222]4 years ago
4 0

Answer:

G and K

Explanation:

Crossing-over is a genetic phenomenon that occurs in meiosis, specifically, Prophase I. It is when chromosomal segment (genes) are exchanged between non-sister chromatids of homologous chromosomes. Crossing-over occurs only to genes that are UNLINKED i.e. genes located on different chromosomes or far apart on the same chromosome.

This unlinked genes are said to have the highest RECOMBINATION FREQUENCY. Crossing-over allows genes on the same chromosome but far apart from each other, assort independently, which allows alleles to be recombined on the same chromosome. This phenomenon does not occur to genes that are close on the same chromosome as they will be inherited together as a unit.

In this case, G and K are the farthest apart, hence, they will have the highest RECOMBINATION FREQUENCY i.e. the likelihood for homologous crossing-over to take place during meiosis.

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Look at the picture and name the Consumers and Producers in the food web.<br><br>(PLEASE HELP NOW)
Vesnalui [34]

Answer:

consumers:

  • fox
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  • rabbit
  • mouse
  • titmouse
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  • butterfly
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producers:

  • plantain
  • berries
  • grasshopper
  • rabbit
  • mouse
  • titmouse
  • snake
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Explanation:

I might be super wrong lol take this with a grain of salt eheh

5 0
3 years ago
18. Which types of mutations, positive, negative or neutral, are most likely to be seen in offspring
Temka [501]
<h2>The following scenarios state whether the mutation is likely to be passed on to the offspring of the organism or not: </h2><h2> </h2>
  • a. A single bacteria cell contains a positive mutation in its DNA - The mutation is likely to pass as it is a unicellular organism with the cell itself containing the positive mutation.

  • b. A skin cell on a cat contains a positive mutation in its DNA - The mutation is not likely to pass as it is the skin cell.

  • C. A sperm cell in a whale contains a positive mutation in its DNA - The mutation is likely to pass as it is in the sperm.

7 0
3 years ago
Why is inbreeding dangerous
Masja [62]
One reason would be the increased chance of Down syndrome
8 0
3 years ago
What does it mean to be scientifically literate
Lynna [10]
Scientific literacy is the knowledge and understanding of scientific concepts and processes required for personal decision making, participation in civic and cultural affairs, and economic productivity.
7 0
3 years ago
In his deletion mapping experiments, Benzer coinfected bacteria with one phage that contained a point mutation and one phage tha
wariber [46]

Answer:

The correct answer would be - there will be wild type and double mutant (contains both the deletion mutation and the point mutation)

Explanation:

It is mention that the deletion mutation and point mutation are non-overlapping or no overlapping regions in the phage genome. A crossing-over event between the regions of these two mutations would get wild-type which means there would be neither point mutation nor deletion mutation and other would be a double mutant that contains both mutation - the point mutation and the deletion mutation.

Thus, the correct answer is - there will be wild type and double mutant (contains both the deletion mutation and the point mutation)

5 0
3 years ago
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