1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fredd [130]
3 years ago
15

how can you explain what you know about the heavily muscled cows with what you have learned about mutations, patterns of inherit

ance, incomplete dominance, sexaul reproduction, selective breeding and transferring of genetic information?
Biology
1 answer:
steposvetlana [31]3 years ago
4 0

Myostatin (GDF-8) is a member of the transforming growth factor β superfamily of secreted growth and differentiation factors that is essential for proper regulation of skeletal muscle mass in mice. Here we report the myostatin sequences of nine other vertebrate species and the identification of mutations in the coding sequence of bovine myostatin in two breeds of double-muscled cattle, Belgian Blue and Piedmontese, which are known to have an increase in muscle mass relative to conventional cattle. The Belgian Blue myostatin sequence contains an 11-nucleotide deletion in the third exon which causes a frameshift that eliminates virtually all of the mature, active region of the molecule. The Piedmontese myostatin sequence contains a missense mutation in exon 3, resulting in a substitution of tyrosine for an invariant cysteine in the mature region of the protein. The similarity in phenotypes of double-muscled cattle and myostatin null mice suggests that myostatin performs the same biological function in these two species and is a potentially useful target for genetic manipulation in other farm animals.

The transforming growth factor β superfamily encompasses a large group of secreted growth and differentiation factors that play important roles in regulating development and tissue homeostasis (1). We have recently described a member of this family, myostatin, that is expressed specifically in developing and adult skeletal muscle and functions as a negative regulator of skeletal muscle mass in mice (2). Myostatin null mice generated by gene targeting show a dramatic and widespread increase in skeletal muscle mass. Individual muscles in myostatin null mice weigh 2- to 3-fold more than those of wild-type mice, primarily due to an increased number of muscle fibers without a corresponding increase in the amount of fat. To pursue potential therapeutic and agricultural applications of increasing muscle mass by inhibition of myostatin activity, we have been characterizing myostatin in animals other than mice. Here we report that the myostatin gene is highly conserved among vertebrate species and that two breeds of cattle that are characterized by increased muscle mass (double muscling), Belgian Blue (3) and Piedmontese (4), have mutations in the myostatin coding sequence. These results demonstrate that the function of myostatin has been highly conserved among vertebrates. hope it helps

You might be interested in
Where would the enzyme topoisomerase attach during dna replication?
babunello [35]
When DNA replication occurs, the DNA strand is being unwound, causing the DNA to be overwound tightly past the replication fork.
For example, If you have ever wrapped two strings around each other and then tried to pull part the middle of the string while holding the ends tight, the rest of the string past the place you're pulling the string apart becomes very tight and strained.

Topoisomerase is an enzyme that binds to the DNA and helps release some of that strain by unwinding the DNA past the replication fork.

That means the correct box is the leftmost one. Hope this helps:)
4 0
3 years ago
Read 2 more answers
Which would most likely cause a person to produce antibiotics?
MissTica

Answer:

A) Receiving a vaccination.

Explanation:

5 0
3 years ago
A)
Rina8888 [55]

Answer:

a) high bite force

b) hawks will deplete

Explanation:

a) Hawks and lions have high bite force to rip raw flesh to feed on. Lions also have bite force to ensure that once they grip its hard to let go. Also to feed on raw hard flesh

b) hawks would have less food on the plate do some will die of hunger. Some will flee to a better places. And hence leaving the previous location with low numbers of hawks.

6 0
2 years ago
Read 2 more answers
How many sperm cells are created from the process of meiosis
Lorico [155]
While mitosis produces 2 daughter cells from each parent cell, meiosis results in 4 sex cells, or gametes in males and 1 in females. Unlike the cells created by mitosis, gametes are not identical to the parent cells. In males, meiosis is referred to as spermatogenesis because sperm cells are produced.

6 0
3 years ago
Why do scientists think that whales evolved from ancient mammals and not ancient fish
lys-0071 [83]
The whale still has traces of a hip and pelvis bones in the back of his body witch scientist think they used to walk on land
7 0
2 years ago
Other questions:
  • What kind of medical assistance is needed for cat eye syndrome?
    13·2 answers
  • Information gathered from observing a plant that grows 3 cm over a two-week period results in
    8·1 answer
  • Theories can become laws and laws can become theories. <br><br> Plz help fast!!!!!
    12·2 answers
  • What sensors in our skin are responsible for the sense of touch?
    11·2 answers
  • BRAINLIESTTT ASAP!!
    12·1 answer
  • Plz help I’ll mark brainliest
    13·2 answers
  • What is a compression in physical science
    14·2 answers
  • ¿Crees que el cromosoma Y contiene genes que son críticos para la supervivencia de un organismo? Explica tu razonamiento
    6·1 answer
  • The only difference between plant and animal cells is that plant cells have chloropaste. Why is this sentence incorrect?
    5·1 answer
  • How much of the world’s population is fed by American farmers
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!