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
vitfil [10]
3 years ago
13

1. What type of information does a pedigree contain?

Biology
1 answer:
nevsk [136]3 years ago
6 0
Q1. Pedigree is the recorded lineage of a family. A pedigree chart is actually a diagram showing an appearance and occurrence of phenotypes in several generations. It is used to find a probability of a child inheriting a particular trait or to discover is the trait autosomal or sex-related.

Q2. The presence of a trait in a pedigree chart is shown as filled-in figure. If a square or a circle in the pedigree chart are white (empty), then a person does not have a particular trait. If a figure is filled in (usually black), then a person has a trait. If a figure is half-filled in (e.g. it is half black half white), then a person is only a carrier of a trait but the trait is not expressed.

Q3. In the pedigree charts, squares present males and circles present females. If a female is healthy, the circle is empty (white). If a female is affected with a trait, the circle is filled in (usually black). Similarly, if a male is healthy, the square is empty. If a male is affected with a trait, the square is filled in.

Q4. The presence of dimples is a dominant trait. <span>In dominant traits, traits do not skip generations, unlike recessive traits. From the pedigree, the disorder did not skip any generations. This suggests that the disorder is dominant. If it was recessive, in some generation the trait would not be expressed.

Q5. If a pedigree chart of a family is known, then the occurrence and appearance of a trait can be predicted. For example, if it is known whether a disease is dominant, recessive, or sex-linked, then a possibility of getting a child with a disease can be easily calculated.</span>
You might be interested in
Microorganisms also exist in the fossil record, but they’re rarer than other types of fossils. The most common fossils form from
Usimov [2.4K]

Answer:

Organisms decompose more quickly when they are in contact with oxygen. ... When an organism is buried quickly, there is less decay and the better the chance for it to be preserved. The hard parts of organisms, such as bones, shells, and teeth have a better chance of becoming fossils than do softer parts.

Explanation:

3 0
2 years ago
Read 2 more answers
What role do receptor sites play in drug activity? What role do receptor sites play in drug activity? The receptor site removes
KATRIN_1 [288]

Answer: The receptor site is the location that a drug binds to, altering the function of a biomolecule.

Explanation:

The drug receptors site, are the sites where the sites where the drug molecules bind.  Basically, a low number of receptors exists and the extent to which the molecules occupy their sites differ with the concentration of drug.  The receptor site changes the conformation and function of the binding molecule of the drug.

5 0
3 years ago
Read 2 more answers
Q - Describe the Mitoses with the help of diagram. write its different phares and explain them.​
bonufazy [111]

Answer:

Mitosis is a type of cell division in which single haploid cell (n) or diploid cell (2n) divides into two haploid or diploid daughter cells that are same as the parent.

Mitosis occurs in somatic cells of plants and animals. In this cell division, the two daughter cells have the same number of chromosomes as that in the parent cells.

Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase.

1.Prophase:-

It is the first visible stage in karyokinesis. The chromosomes appear as long coiled threads called chromatids. The chromatin becomes shorter, thicker and visible due to the condensation of DNA. The chromatins are now called chromosomes. Stainability of nucleus increase. Each chromosome starts to splits longitudinally into two sister chromatids. These sister chromatids are attached to each other at the centromere. The nuclear membrane and nucleolus start to disappear and by the end, it will be completely disappeared.

ii. Metaphase:-

Nuclear membrane and nucleolus completely disappears and simultaneously appearance of spindle fibers. Spindle fibers are attached to the centromere of a chromosome. The chromosomes are arranged on the equatorial plane. The process of gathering of chromosomes in equator is called congressional and plate formed is called metaphasic plate.

iii. Anaphase:-

The centromere of each chromosome splits into two sister chromatids and forms two daughter chromosomes. The daughter chromosomes are pulled towards the poles due to the contraction of spindle fibres and stretching of interzonal fibers. During polar movement, the chromosomes show different shapes i.e. J, U, V, L or I shaped in appearance. At the end of anaphase, each pole will get one set of daughter chromosomes. It is the shortest phase and is also known as a migratory phase.

iv. Telophase:-  The daughter chromosomes reach respective poles and uncoil and become thin, long and visible. The spindle fibres start disappearing and finally disappear. The nuclear membrane and the nucleolus reappear.

Two nuclei are formed at the end of telophase. Both the nuclei have the same number of chromosome as the parent cell. It is the last visible stage of karyokinetic and is also known as reorganization phase.

It is followed by cytokines or division of cytoplasm.

Explanation:

5 0
2 years ago
A cell with a defective p53 gene is likely to (1 point)
Nastasia [14]

The right answer is stop responding to growth regulators.

The p53 protein is a transcription factor that plays an important role in cancer. Discovered in 1979, it binds to DNA and promotes the expression of genes that must repair cellular damage. The p53 protein controls the cell cycle and interacts with dozens of genes.

3 0
3 years ago
Read 2 more answers
Please help me anything helps.
oksian1 [2.3K]

Answer: at the center of tectonic plates hope this helpsヾ(•ω•`)o

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • Cell drinking; cell eating. Both are modeled here and are examples of A) osmosis. B) diffusion. C) endocytosis. Eliminate D) fac
    15·1 answer
  • The name of the man to first discover the microscope ​
    10·1 answer
  • 4 The graph below shows how the activity of an enzyme changes
    9·1 answer
  • True false glucose is the most abundant sugar in our bodies.
    8·1 answer
  • What process is DNA going through inside the nucleus?
    5·1 answer
  • Which of the following gets nutrients by absorbing molecules from other organsims through ita cell wall or cell membrane?
    8·1 answer
  • Describe earliest land plants
    12·1 answer
  • You work in a lab that is studying PIWI proteins. You isolate piRISCs from cells. Based on what you know about how piRISCs silen
    11·1 answer
  • Explain effects of ecto parasite<br>​
    13·1 answer
  • Using the ultrasonication and agitation method of liposome preparation, what concentration of lipid is necessary to prepare lipo
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!