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igor_vitrenko [27]
2 years ago
15

If a chromosome fragment breaks off and then reattached to the original chromosome, but in the reverse direction, the resultant

chromosomal aberration is called:
Biology
1 answer:
MArishka [77]2 years ago
7 0

Answer:

An inversion

Explanation:

An inversion occurs when a chromosome breaks in two places; the resulting piece of DNA is reversed and re-inserted into the chromosome. Genetic material may or may not be lost as a result of the chromosome breaks.

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Child 2 is polydactylous, otherwise normal; Child 4 has cystic fibrosis and is polydactylous.What is the genotype of the mother?
satela [25.4K]

Answer:

PpCc; ccpp; ccPp; 1/2

Explanation: The complete correct question is as follows

A polydactylous woman, otherwise normal, marries a healthy normal man. Their four children have the following phenotypes:

Child 1 is normal in all respects; Child 3 has cystic fibrosis, otherwise normal Child 2 is polydactylous, otherwise normal; Child 4 has cystic fibrosis and is polydactylous. A. What is the genotype of the mother? B. What is the genotype of child 3? C. What is the genotype of child 4? D. What is the chance that child 1 is heterozygous for cystic fibrosis?

We represent the traits of the parents with the following

P= Polydactyly

p=normal

C= normal

c= abnormal (cystic fibrosis

A. What is the genotype of the mother

Mother PpCc (polydactylous)

Father: ppCc (healthy normal)

B. What is the genotype of child 3?

Applying the mendel's cross link between the mother's genotype and father's genotype,

PpCc × ppCc

Child 3 will be ccpp (abnormal with cystic fibrosis)

C. What is the genotype of child 4?

Applying the mendel's cross link between the mother's genotype and father's genotype,

PpCc × ppCc

Child 4 will be ccPp

D. What is the chance that child 1 is heterozygous for cystic fibrosis?

Applying the mendel's cross link between the mother's genotype and father's genotype,

PpCc × ppCc

Child will be Cccc

The chance is 1/2

8 0
3 years ago
An organism has the scientific name Canis lupus. Based on your knowledge of taxonomic categories explain how it is similar to an
jarptica [38.1K]

Answer:

They belong to the same genus, but are different species.

Explanation:

Canis is a genus that belongs to the family Canidae which contains multiple species, such as wolves, coyotes, jackals, dogs.

So, a genus, in general, is taxonomic category beyond the species and below the family. In binomial nomenclature, the first part of the binomial species name is the name of genus for each species within the genus (such as Canis lupus and Canis latrans).

Canis lupus is the binomial name for gray wolf, while Canis latrans is for coyote.

7 0
3 years ago
The body is susceptible to
gayaneshka [121]

Answer:

A susceptible person is someone who is not vaccinated or otherwise immune or a person with a weakened immune system who has a way for the germs to enter the body. For an infection to occur, germs must enter a susceptible person’s body and invade tissues, multiply, and cause a reaction.

5 0
3 years ago
Which one of the following statements accurately describes a characteristic of red blood cells?
wel
A)no, they do, they do have hemoglobin! what they do lack is a nucleus (so answer B is also false)

c) - no, inflammation would be more a response of immune cells (not red blood cells) to a foreign body or organism

d) -yes, this is the correct one!
6 0
2 years ago
What do kingdoms animalia and fungi have in common
iVinArrow [24]

Answer:

both kingdoms have living organisms made up of complex eukaryotic cells.

Explanation:

5 0
3 years ago
Read 2 more answers
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