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Kaylis [27]
3 years ago
5

A scientist is studying the inheritance of two characteristics in plants: red flowers (RR and Rr) , which are dominant to yellow

flowers (rr) , and green leaves (GG and Gg) , which are dominant to yellow leaves (gg) . She crosses a double heterozygous (RrGg) with a double recessive (rrgg) , and expect to see a 1:1:1:1 ratio in the offspring. Instead, she sees these results: Genotype RrGg rrgg Rrgg rrGg Predicted outcome 500 500 500 500 Actual outcome 900 900 100 100 Which phenomenon would she hypothesize accounts for the pattern she sees? crossing-over respiration cytokinesis independent assortment
Biology
1 answer:
marin [14]3 years ago
7 0

Answer:

The correct option is <em>B. Crossing- over </em>

Explanation:

In biology, crossing over can be described as a phenomenon by which homologous chromosomes exchange segments during the process of meiosis.

The unexpected results came because the DNA segment between the homologous chromosomes was exchanged during meiosis. The alleles got shuffled by this process and hence showed the unexpected results.

Crossing over and independent assortment are phenomenon which occurs only during the process of meiosis. These phenomenons cannot be observed during mitosis.

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3 years ago
A snickers® candy bar contains 280 calories, of which the fat content accounts for 120 calories. what is the energy of the fat c
Andrei [34K]

5.0 x 10² KJ

From the question given above,

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6 0
3 years ago
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mario62 [17]

Answer:

The surface area of the cell increases to volume ratio

Explanation:

As a cell grows, the surface area of the cell increases to volume ratio. When cell division occurs, the surface area is distributed and each daughter cell have less surface area but with the passage of time, the surface area increases. The main function of mitosis is to increase the population of the cell, the cell must be divided into two daughter cells in the process of mitosis. Tumors occurs when the process of mitosis is uncontrollable. One observation that is found interesting while looking at the onion root tip cells is the multiplication of the cells by the process of mitosis.

5 0
4 years ago
An earthquake has just occurred. seismic waves from the earthquake are detected at two recording stations. at recording station
Law Incorporation [45]
Let be E the epicenter, a and b are the stations



     E                         a                             b
----/---------------------/-------------------------/------------

just after the earthquake has occured, waves must detected step by step, from a, then after from b, Ea < Eb, so , <span>b is farther from the epicenter than 
a.</span>
3 0
3 years ago
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djverab [1.8K]

Answer:

no freaking clue buddy that looks made up

Explanation:

ion know

3 0
3 years ago
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