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sweet-ann [11.9K]
3 years ago
13

A pea plant with round seeds (RR) is crossbred with another pea plant with wrinkled seeds (rr). What is the probability of the o

ffspring having wrinkled seeds? 0% 25% 50% 75%
Biology
2 answers:
kati45 [8]3 years ago
7 0
0% because the wrinkled seed alleles (rr) are recessive.
vichka [17]3 years ago
3 0

Answer:

0%

Explanation:

The cross of a pea plant with round seeds (RR) with another pea plant with wrinkled seeds (rr) is shown as under :

P              RR  x   rr

F1          Rr    Rr    Rr   Rr

It is clear from the cross above, all the 4 probable progenies in filial 1 (F1) generation will be heterozygous with Rr genotype. Not even a single progeny will have homozygous recessive genotype which is responsible for producing wrinkled seeds. Also, even though the genotype of the progenies will be Rr not RR yet phenotypically they all will have round seeds i.e. they will show dominant trait. The reason behind it is that one of the alleles R which is responsible for dominant trait will mask the expression of recessive allele r. So, wrinkled phenotype which is a recessive trait will not be observed in any of the progenies.

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Wet barometer - The tool works by measuring atmospheric pressure to predict incoming weather. Since the glass is only filled halfway with water, the other half is exposed to the atmosphere. When the outdoor atmospheric pressure rises, the pressure in the glass decreases, and causes the water to move down the spout.

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6 0
3 years ago
White flower color is recessive to purple flower color in pea plants. If a pea plant has white flowers, what is
irina1246 [14]

Answer:

An organism's genotype is its specific combination of alleles for a given gene. So, for example, in the pea plants above, the possible genotypes for the flower-color gene were red-red, red-white, and white-white. The phenotype is the physical manifestation of an organism's allelic combination (genotype).

Explanation:

hope this helps sorry if it doesn't have a good rest of your night :) ❤

5 0
3 years ago
A gene can be regulated post-transcriptionally by any of these processes, EXCEPT:
labwork [276]

Answer:

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6 0
3 years ago
The classification of algae in taxonomic groups remains a topic of some debate. The classic approach to classification focused o
svp [43]

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Chrysophyta;The is a diverse group that includes the diatoms, a major component of phytoplankton

Explanation:algae are a diverse group of organisms with majority of them living in water and a few on land. They are green and contains chlorophyll.they also contains phycobillins pigments.

Chlorophyta are green algae that exist in water habitat an example is Chlamydomanas reinhardi.they have similar structures with higher plants such as chlorophyll, cellulose cell wall and stores food as starch.

The chrysophyta includes diatoms.diatoms have a cell wall composed of pectin and deposits of silica. They may occur in large deposit as diatomaceous earth.

Phaeophyta--are brown algae. An example is sea weed they are found in deeper ocean waters. Sea weed has a thallus which branches into a basal holdfast that aids attachment to rocks.their blade allows the plant to float

Rhodophyta are algae which are sometimes Unicellular in form they have a characteristic red color due to the presence of phycoerythrin along with phycocyanin, chlorophyll.they are used as source of algar for microorganism culture.

7 0
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Aleonysh [2.5K]

Answer:

Explanation:

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3 years ago
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