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3 years ago

What is the definition for Recessive Inheritance

2 answers:

7 0

Where a mutation in a gene on the X chromosome causes the phenotype to be always expressed in males and in females who are homozygous for the gene mutation, see zygosity. Females with one copy of the mutated gene are carriers

Pavel [41]3 years ago

6 0

Explanation:

Recessive inheritance means both genes in a pair must be abnormal to cause disease. People with only one defective gene in the pair are called carriers. These people are most often not affected with the condition. However, they can pass the abnormal gene to their children. CHANCES OF INHERITING A TRAIT

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your frien d runs out of gas and you have to help push his car. discuss the sequence of b ones and joints that convey the forces

MaRussiya [10]

<h2>Upper limb,Pectorial girdle and Axial skeleton</h2>

Explanation:

Upper limb-

The muscles of the upper appendage can be divided into 6 distinct areas such as pectoral, shoulder, upper arm, front lower arm, back lower arm, and the hand
There are 4 muscles of the pectoral locale pectoralis major, pectoralis minor, serratus foremost and subclavius

Pectorial girdle-

The shoulder girdle or pectoral girdle is the arrangement of bones in the attached skeleton which interfaces with the arm on each side
In many of the it comprises of the scapula and clavicle
In many species have three bone found in the shoulder, it connected of the coracoid and clavicle and scapula

Axial skeleton function-

The pivotal skeleton underpins and ensures the mind, spinal rope and huge numbers of the interior organs
It likewise gives locales to the connection of different bones and muscles in the body and shields the nerves and veins from the cerebrum and spinal line.

7 0

3 years ago

Examine the phylogenetic tree and use it to answer this question. which two organisms are most closely related? question 5 optio

slamgirl [31]

Brown algae and dinoflagellates

Reason: Because they are the closest being in the same branch, makes them the most related.

Hope this helps! :))

4 0

3 years ago

An individual with Huntington disease has two normal parents. What are plausible explanations for this pattern of inheritance? C

Vitek1552 [10]

Answer and Explanation:

The Huntington disease is caused by a mutation in the gene that codifies for the Huntingtin protein (Htt). The mutation produces an altered form of the protein leading to the neuron´s death in certain areas of the brain.

The Huntington disease characterizes for being,

Hereditary, passing from generation to generation. To express the disease, a person must have been born with an altered gene.

Autosomal, affecting men and women equally, because the mutated gene is located on an autosomal chromosome.

Dominant, which means that by getting only one copy of the altered gene coming from any of the parents, the receiving person will express the disease. The mutation in the gene dominates over the normal gene copy.

Expressed by heterozygosis. Most people affected by the disease are heterozygous, with a normal copy and a mutated copy.

There are just a few cases all around the world (3% approximately) in which the disease is expressed with no family history. The progenitors are not affected by the mutation. These cases are very rare and are called "de-novo" mutations. A new mutation is spontaneously produced and it is not inherited from any of the parentals. It consists of an increase in the number of CAG repetitions. In a normal person, the number of CAG repetitions is less than 35. When there are 40 or more repetitions it occurs the disease. But when there are between 35 and 39 repetitions, the penetrance of the disease is incomplete. This is a "gray zone". Those alleles that fall in the gray zone are unstable and might produce the HD. Individuals with these unstable alleles have a tendency to increase the number of repetitions from generation to generation until the number reaches 40 repetitions and the person expresses the disease. This usually occurs in the paternal germinal line, as it is particularly unstable in sperm and probably meiosis greatly affects their instability, causing an increase in the number of CAG repeats.

6 0

3 years ago

Differences between reducing sugars and non reducing sugars

My name is Ann [436]

Answer:

1. reducing sugars are sugars that anomeric carbon has an OH group attached

2. Non reducing sugars do not have an OH group attached

Explanation:

4 0

3 years ago

This question is confusing and i don't get it at all. can anyone help??

BigorU [14]

Answer:

the correct answers are digestive,sensory,and nervous system

Explanation:

I added a pic idk if u can view but it verifies the answers hope it helps

6 0

3 years ago