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Kazeer [188]
3 years ago
6

Which of the following processes generates a continuum (spectrum) of varying phenotypes?

Biology
1 answer:
Maurinko [17]3 years ago
4 0

Answer:

option B: Polygenic inheritance

Explanation:

Polygenic inheritance in genetics and plant breeding can be defined as a type of inheritance whereby  one or a single trait or  characteristics(color)  is controlled by multiple genes (two or more genes). it is a continuous variation that depicts a normal distribution curve

the phenotype of a plant or an animal increases if when there is an increase in the number of genes controlling a particular trait or characteristics. polygenic inheritance are non-Mendelian form of inheritance in  nature and a  single trait expressed is as a result of the interaction of many or multiple genes that are quantitative genes in nature. examples are weight, skin color, height, e.t.c

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The triad in a skeletal muscle fiber is composed of a centrally located T-tubule flanked on both sides by the terminal cisternae
katrin [286]

Answer

Option B. This mutation will increase the sensitivity of the DPH receptor to voltage changes, which will induce continued muscle contraction.

Explanation:

Since the receptor stays open, it allows for calcium to be released from the sarcoplasmic reticulum and thus, enables muscle contraction to take place.

Hope that answers the question, have a great day!

5 0
3 years ago
Which of the following would you use to inhibit the contraction of muscle in vitro as a control for an experiment you are conduc
borishaifa [10]

Answer:

The correct answer is option A. a motor protein ATPase inhibitor.

Explanation:

Motor proteins are sub-atomic motors that utilize ATP hydrolysis to move along cytoskeletal filaments inside the cell. They satisfy numerous capacities inside the biological system, controlling the sliding of filaments for muscle contraction and intervening intracellular movement along biopolymer filament tracks.  

The two globular head motor areas in heavy chains can change over the chemical energy of ATP hydrolysis into mechanical work to move along microtubules.

Thus, in vitro experiment inhibitor of the motor protein, ATPase will be a control.

6 0
3 years ago
3. What does the notation TT mean to geneticists?
Nastasia [14]

Answer:

Two dominant alleles.

Explanation:

TT is two Ts that are both capitals. Capital letters are used most frequently to denote dominance.

So, these are two dominant alleles.

7 0
2 years ago
Immediately after gastrulation:
marta [7]
The sperm one...................
5 0
3 years ago
Frank counts 56 maple trees living on a 20-acre tract of land, and the data allows him to calculate the of the maple trees on th
frozen [14]

Answer:

population density

population distribution

age structure

Explanation:

if we look at this question; it looks glaring that it correlates with a fill in the blank type of question.

So, from the question:

Frank counts 56 maple trees living on a 20-acre tract of land, and the data allows him to calculate the <u>population density</u> of the maple trees on the land.

In an ecological succession, population  density refer to species of  a common genera in specific geographical setting. It helps to measure the exact number of organism inhabitant a unit area of a place.

He observes that most of the maple trees grow closely together in groups of 6 to 8 trees, which describes the <u>population distribution. </u>

Population distribution is the spread of organism over a region in a geographic ecological setting. The pattern of distribution of organism may be uniform , in some  organism they are largely dispersed and in some they are clumped together.

The<u> age structure </u>of the maple trees shows the percentages of trees of different ages.

The age structure is also a term used in ecology which is normally use to predict the proportion of growth of organisms. Age structure  of  species in the environment speaks volume about their  distribution of age.

7 0
3 years ago
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