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
BARSIC [14]
3 years ago
9

What is the relationship between a hox gene position on a chromosome and the physical appearance of an organism

Biology
1 answer:
blsea [12.9K]3 years ago
7 0

Answer:  

Hox genes are thus a subset of the homeobox transcription factor genes. In many animals, the organization of the Hox genes in the chromosome is the same as the order of their expression along the anterior-posterior axis of the developing animal, and are thus said to display colinearity.

Explanation:

Hox genes, a subset of homeobox genes, are a group of related genes that specify regions of the body plan of an embryo along the head-tail axis of animals. Hox proteins encode and specify the characteristics of 'position', ensuring that the correct structures form in the correct places of the body.

Chromosomes are thread-like structures present in the nucleus, which carries genetic information from one generation to another. They play a vital role in cell division, heredity, variation, mutation, repair and regeneration.

You might be interested in
what is a situation where an environmental factor that could influence natural selection and decrease genetic diversity?
NARA [144]
Brainless beck has no idea of what us has to say when the game
6 0
3 years ago
The genetic code is thought to have evolved to maximize genetic stability by minimizing the effect on protein function of most s
Nikitich [7]

Answer:

The six codons for arginine are the following:

GCA, GCG, GCT, GCC, TCT, TCC

A) Considering the individual bases in each codon, three mutations are possible at each base position. Hence, 3 × 3 × 6 = 54 mutations are possible.

B) Considering the mutations at the 3rd base: 3 × 4 + 1 × 2 = 14 of these mutations are silent mutations.

C) Lysine codons are the following:

TTT, TTC

There are two possible mutations that can give a lys codon.

Hope that answers the question, have a great day!

8 0
3 years ago
object forms when a supergiant runs out of fuel?a red giant a black hole a white dwarf a neutron star
LenKa [72]

<u>ANSWER:</u>

When a supergiant runs out of fuel, the object formed is either a black hole or a neutron star.

<u>EXPLANATION:</u>

  • Supergiant are very large stars in the galaxy that end their lives very quickly.
  • When a supergiant star loses its fuel, it blows itself by a supernove explosion.
  • When supernove explosion happens, the supernova outshines other stars in the galaxy and then slowly faded away leaving a dense object called black hole or neutron star.
  • This black hole or neutron star is surrounded by a mass of very hot gas and the elements of the supergiant star get scattered into the space.
5 0
3 years ago
Read 2 more answers
Explain a scenario in which secondary succession would occur.
andrey2020 [161]

Answer:

In secondary succession, a previously occupied area is re-colonized following a disturbance that kills much or all of its community. A classic example of secondary succession occurs in oak and hickory forests cleared by wildfire. Wildfires will burn most vegetation and kill animals unable to flee the area.

4 0
3 years ago
Summarize the effects of progesterone and estrogen
SVETLANKA909090 [29]

<u>Definition:</u>

The sex hormone  and endogenous steroid present in human and other species ' menstrual cycle, pregnancy, and embryogenesis are known as "Progesterone" while the primary sex hormone in females  responsible for the development and control of the female reproductive system and for the characteristics of secondary sex is termed as "Estrogen" or "oestrogen".

<u>Progesterone Effects:</u>

  • Progesterone has a variety of physiological effects which are exacerbated when estrogens are present for an instance in breast tissue, where estrogens permits progesterone to mediate lobuloalveolar development.
  • Progesterone has main effects on human sperm by non-genomic signals, as they move through the female tract before fertilization.
  • Progesterone is called "hormone of pregnancy" as transform the endometrium to its secretory stage for uterine implantation, decrease the maternal immune response to permit for the acceptance of the pregnancy during implantation and gestation, prevent preterm labor, inhibits lactation during pregnancy etc.

<u>Estrogen Effects:</u>

  • Effects structure of human and categorize them as male and female, while females have three kind of estrogen: Estrone (weak and found in women after menopause), Estradiol (strong and it is steroid produced by ovaries ) and Estriol (weakest and waste product after body produces estradiol).
  • It effects ovaries, vagina, Fallopian tube, uterus, cervix and mammary glands.
  • It triggers the release of an egg due to high level during halfway of cycle but decreases after ovulation.

<u>Similarities between progesterone and estrogen: </u>

Progesterone and estrogen  as such do not have similar function but work with coordination as both are need for menstrual cycle functioning and regulation. Estrogens usually travel in fluids through the bloodstream, communicate with cells in the body's various tissues, and provide a message or guidance while progesterone helps to balance pregnancy period  and to implant an egg in uterus.

4 0
3 years ago
Other questions:
  • What is common about all eggs no matter their size, grade, or color?
    10·1 answer
  • What would MOST LIKELY happen to the grass if most of the fungi and bacteria die?
    13·2 answers
  • What is the ethical value of using a model organism, such as zebrafish for doing marine research on pathogens?
    13·2 answers
  • What component of the circulatory system is at the tissue level? a. blood b. white blood cell c. heart d. hemoglobin
    7·2 answers
  • Which hormone is produced mainly in the stomach and regulates secretions of gastric juice?
    5·2 answers
  • Which of the following foods contain cholesterol? a. Baked chicken b. Pasta c. Wheat germ d. Boiled potatoes e. Peas
    12·1 answer
  • What is the potential energy of a 0.5-kg bowl of soup sitting on a tray 2 meters above the ground
    15·1 answer
  • You eat a candy bar to get you through a late-night studying session. Your body quickly begins to break down the macromolecules
    8·1 answer
  • If a piece of pure iron is placed in pure nitrogen, nothing happens. If the iron is exposed to air, it begins to rust. What conc
    10·2 answers
  • The diagram below shows four coastline locations on Earth with respect to the moon at a given time.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!