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Rasek [7]
3 years ago
14

What is crossing-over, during what phase does it occur, and what is its significance?

Biology
1 answer:
kondaur [170]3 years ago
4 0

Answer:

Crossing over is a biological occurrence that happens during meiosis when the paired homologs, or chromosomes of the same type, are lined up. Hope this helps :)

Explanation:

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Three linked autosomal loci were studied in cucumbers: fruit color (dark vs. light), tendril size (long vs. reduced) and fruitin
Zina [86]

Answer:

Explanation:

1. Progeny observed in the experiment is calculated by adding all the progeny numbers observed in the :

TIME TO FRUIT                TENDRIL SIZE        FRUIT COLOR       NUMBER

 

 Normal                             normal                      dark                        370

 normal                              normal                      light                        32

 early                                  normal                      light                        971

 early                                   normal                     dark                         28

 early                                  reduced                    dark                          25

 early                                   reduced                   light                          483

 normal                                reduced                   light                          36

 normal                                reduced                    dark                         810

                                                                               TOTAL

                                                                                PROGENCY           <u>2755</u>

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2. The locus in the center is TIME TO FRUIT. Tendril size is at the beginning of the locus and the distance between the locus B and locus C is R2

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3 0
3 years ago
What kind of living and non living things do you think a marine biologist studies
DanielleElmas [232]

Probably the animals and what the animals live in.

3 0
4 years ago
Read 2 more answers
How does a glacier move?
Mandarinka [93]

Answer:

gravity

Explanation:

Gravity is the cause of glacier motion; the ice slowly flows and changes in response to gravity. A glacier molds itself to the land and also molds the land as it creeps down the valley. Many glaciers slide on their beds, which enables them to move faster.

8 0
3 years ago
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What perspective maintains that generalized anxiety disorder develops as a result of exposure to threatening environments?
ikadub [295]

Answer:

sociocultural

Explanation:

Sociocultural maintains that generalized anxiety disorder develops as a result of exposure to threatening environments.

Sociocultural means combining social and cultural factors.

The focus of study in anthropology is an example of sociocultural.

The theory of sociocultural perspective explains how behaviors of individuals are affected by their social and cultural factors.

5 0
3 years ago
What do you think about this
denpristay [2]

Answer:

d

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Carbohydrates is bassically sugar

7 0
3 years ago
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