Which of the following is a part of a land-based carbon cycle?

Suppose two independently assorting genes are involved in the pathway that determines fruit color in squash. These genes interac

makvit [3.9K]

Answer:

100% yellow fruit color, Yyww.

Explanation:

Available data:

two independently assorting genes

the W allele codes for a dominant white phenotype

w allele codes for a colored squash

The allele Y codes for a dominant yellow phenotype

the allele y codes for a recessive green phenotype

The phenotypes from the first locus will always mask the phenotype produced by the second locus if the dominant allele (W) is present at the first locus. This masking pattern is known as dominant epistasis

Epistasis means "interruption" and refers to interactions between genes located in different loci in the same chromosome. An “epistatic gene” can alter, influence, or suppress the expression of a "hypostatic gene". When the epistatic gene is dominant, the interaction is known as "dominant epistasis".

W suppresses the expression of Y and y, this means that whenever W is present, the fruit is white. If W is not present, the fruit color can be expressed.

So, the proposed cross in the present problem occurs between a green fruited individual and yellow fruited individual, which suggests that W is absent.

Genotype for Green fruit: yyww

Genotype for purebred Yellow fruit: YYww

Cross:

Parental) YYww x yyww

Gametes) Yw Yw Yw Yw yw yw yw yw

Punnet square) Yw Yw Yw Yw

yw Yyww Yyww Yyww Yyww

F1) 100% Yellow fruited plants, Yyww

As these two genes assort independently, we can also represent the cross for each gene by separate, like this:

For w gene:

Parental) ww x ww

Gametes) w w w w

Punnet square) w w

w ww ww

F1) 4/4 or 100% colored-fruits

For Y gene:

Parental) YY x yy

Gametes) Y Y y y

Punnet square) Y Y

y Yy Yy

F1) 4/4 or 100% yellow fruits, Yy.

3 0

3 years ago

3. (b) How does crossing over increase the variation in the gametes (and hence the offspring)?

sasho [114]

Answer:

During crossing over, part of one chromosome is exchanged with another. The result is a hybrid chromosome with a unique pattern of genetic material. Gametes gain the ability to be genetically different from their neighboring gametes after crossing over occurs.

3 0

2 years ago

When trees transpire releasing gaseous water into the atmosphere make another key from the environment include what property of

Jobisdone [24]

H2O(l)-> H2(l)+O(g)
as the trees transpire releasing gaseous water. Water would decomposed to release O.

5 0

3 years ago

A manager wanted to test whether the amount of noise in a clothing factory affected how

Vitek1552 [10]

Answer:

When seeking to determine the number of shirts made by employees subjected to noise with and without the use of headphones, the independent variable is the amount of noise.

Explanation:

During an investigation, the independent variable may be subject to change, in order to observe the effect it will have on the dependent variable.

In the case presented, the amount of noise to which employees are exposed represents the independent variable, which is modified by the use of headphones that block all or part of the noise.

The productivity —expressed in the number of shirts made— can be expected to be higher for employees not exposed to noise.

Other options do not apply because:

The number of shirts made by the employee. Dependent variable .
The type of music the employees listen to while they work or the amount of training employees need. These are not the variables studied.

7 0

3 years ago

Sheep are herbivorous. What can you Infer from this?

valentinak56 [21]

Answer:

Since sheep’s are herbivore, it can be inferenced they only eat plants. Due to the fact they only eat plants, means they are primary animals, and a have lots of predators. They have lots of predators due to the fact they are so low in the food chain, they are right above plants.

7 0

3 years ago