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horsena [70]
3 years ago
10

Suppose you have identified a type of lizard that seems to have acquired a mutation in which hindlimbs are absent. Which gene, a

lso responsible for the loss of limbs in snakes, may be mutated in this animal
Biology
1 answer:
slavikrds [6]3 years ago
7 0

Answer:

Sonic Hedgehog.

Explanation:

Sonic hedgehog is a secreted protein that in humans is encoded by the SHH gene. It is the best studied ligand of the hedgehog signaling pathway, others being desert hedgehog (DHH) and Indian hedgehog (IHH). It plays a key role in the development of animals, from insects to mammals. In vertebrates, it is involved in organogenesis, including the growth of digits on limbs and the organization of the brain.

Sonic hedgehog has also been shown to act as an axonal guidance cue. It has been demonstrated that SHH attracts commissural axons at the ventral midline of the developing spinal cord. Specifically, SHH attracts retinal ganglion cell (RGC) axons at low concentrations and repels them at higher concentrations

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The most important information in this model he developed is the "filter theory."

Explanation:

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4 0
3 years ago
What is the purpose of the dense hairs around the flowers of the woolly lousewort?
kogti [31]
The dense haris around the flowers of the woolly lousewort are vital because they<span> trap heat from the sun. So the correct option is B. Hope this helps a lot </span>
5 0
3 years ago
Read 2 more answers
Whats the difference between a conpound and inorganic compund
Eduardwww [97]

Organic compunds usually contain carbon. You can conclude this because of the relation of the word "organic" with the word "carbon", which is considered to be the element of life.

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Hope it helped,


BioTeacher101

3 0
3 years ago
cuando se cruza un conejo blanco homocigoto (bb) con una coneja negra heterocigoto (Bb). que proporcion de conejos blancos tendr
enot [183]

when a homozygous white rabbit (bb) is crossed with a heterozygous black rabbit (Bb). what proportion of white rabbits would the offspring have?

Answer:

Based on the Mendelian fashion cross,

bb is hetezygote reccessive.(white)

Bb is heterozyote dominant.(black)

Therefore,the the cross to show the proportion is below

Bb,Bb,bb,bb,

2 blacks(hetero zygote blacks) and 2 white.(homo zygote whites)

thus 2 of the offspring will be white, in 50%, of the number of offspring

Explanation:

6 0
3 years ago
Describe how humans’ way of life has changed. Begin with hunter-gatherers and end with life after the Industrial Revolution.
iragen [17]

Answer:

Ever since the existence of life of humans on Earth, the humans have been making progress to understand themselves and the mother nature.

In the start, the humans were hunter- gatherers. Hunter- gatherers can be described as humans which use wild life plants and animals for food. The humans used to live in jungles and eat the wild- life plants and animals. They used leaves from the trees to cover their bodies. Heat was produced by rubbing the rocks.

After this time, the humans learned the techniques of cultivating plants for food. They started cultivating crops and depend on them for living. During this time, humans learned the art of farming and agriculture. But they couldn't understand the effects of various pathogens infecting the crops and humans at that time.

After this time, humans learned the art of preserving foods in different forms like pickles etc. They also learned that certain types of plants could be used to treat wounds and other diseases.

With the passage of time, people learned to make and use machinery for making their tasks easier. The usage of machinery progressed rapidly and the industrial revolution began. People became more diverted to this sector rather than farming. They started to move towards the cities to find better jobs in industries.

Life after industrial revolution was much easier as humans had made a lot of equipments which aid them to have a better life style. Science has been developing since that time day by day.

Explanation:

4 0
3 years ago
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