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
geniusboy [140]
3 years ago
6

The blood group B is almost absent in Native Americans, whose ancestors arrived in very small numbers about 10,000 years ago. Wh

ich factor is responsible for this phenomenon?
a, migration effect b, founder effect c,bottleneck effect are the options
Biology
2 answers:
SOVA2 [1]3 years ago
6 0

Answer:

B) The Founder effect

Morgarella [4.7K]3 years ago
4 0
"Founder effect" is the one factor among the choices given in the question that is responsible <span>for this phenomenon. The correct option among all the options that are given in the question is the second option or option "B". I hope that this is the answer that has actually come to your great help.</span>
You might be interested in
Given an individual who is heterozygous for a recessive disease (i.e., the wildtype allele is dominant), explain how a deletion
omeli [17]

Answer:

Let us consider that A signifies the dominant allele and letter a signifies the recessive allele. The dominant allele, A would demonstrate normal phenotype, on the other hand, the recessive allele, a would be accountable for the disease. The possibilities of genotypes and phenotypes would be AA demonstrating normal homozygous individual, Aa demonstrating normal heterozygous individual, and aa demonstrating homozygous individual carrying the disease.  

Based on the given question, the genotype of the individual would be Aa, due to the existence of the dominant allele, normal phenotype would be demonstrated by the individual. In case if the deletion of A allele takes place from the genotype, the left a allele would possess the tendency to show its effect and the expression of the recessive phenotype will take place.  

Hemizygous refers to the condition in which only one allele is found in a diploid organism, and the organism within which it takes place is known as hemizygote.  

8 0
4 years ago
what are the types of mutations, and how does each alter the encoded protein? college level answer please​
Levart [38]

Answer:

point mutation missense mutation silent mutation non sense mutation

Explanation:

point mutation it change one base of DNA in this case nucleotide substitution occur like sickle cell missense mutation in this case replacement of one nucleotide nonsense mutation cause the replacement of codon silent mutation does not change the sequence of protein because of new triplets codes for the same amino acid

3 0
4 years ago
The body's ability to maintain a relatively constant internal environment is called homeostasis. This stability can be challenge
Anit [1.1K]

Homeostasis can be defined as the state of maintenance of the constant internal conditions by the living organisms. The homeostasis is maintained by the body so that it may function properly. The homeostasis will be disturbed by the reduced intake of the food and water. Healthy intake of water and food is essential in maintaining the homeostasis of the body. The elevated or depressed blood pH along with extreme body temperatures will also disturb the homeostasis of the body making the person sick. Moreover, certain infectious organisms also alters the homeostasis of the body.

Hence, all the options are correct.

5 0
3 years ago
Read 2 more answers
Assume that genes A and B are 50 map units apart on the same chromosome. An animal heterozygous at both loci is crossed with one
fomenos

Answer:

Explanation:

The homozygous recessive individual can only produce 1 type of gamete (<em>aabb</em>).

The heterozygous individual can produce 8 types of gametes, of which 2 are parental and the rest are recombinant.

Genetic distance (m.u.) = Frequency of Recombination (%)

If the distance between genes A and B is 50 m.u., 50% of the gametes produced by the heterozygous individual, and therefore the offspring, will have recombinant phenotypes.

Without knowing that the genes are located on the same chromosomes, I'd think they are on different chromosomes, because you would get the same result: 50% recombinant offspring.

Whenever the genes on the same chromosome are separated by at least 50 m.u., or they are in different chromosomes, crossing over between them can happen with no restrictions and they will behave as independent of one another.

3 0
4 years ago
The ureter, blood vessels, and nerves penetrate the kidney on its medial surface? True or false?
malfutka [58]
True I study this last semester
7 0
3 years ago
Other questions:
  • Why do chloroplast matter in photosynthesis
    15·1 answer
  • Andrew is describing the water cycle in three steps, as shown in this simple model. Which statement belongs in the third region?
    8·1 answer
  • Giraffes are also vertebrates, like humans. In fact, despite their different neck sizes, humans and giraffes have exactly seven
    15·2 answers
  • A student’s data did not support her hypothesis. What is her next step?
    15·1 answer
  • Which of the following are effects of environmental change on populations? speciation and a decrease in resources loss of habita
    6·2 answers
  • Most coenzyemes are derivatives of​
    14·2 answers
  • A genome-wide association study involves searching the genomes of many people in order to find genetic variations associated wit
    8·1 answer
  • Franklin was performing an experiment by combining hydrochloric acid and sodium hydroxide. He measured the mass of his reactant
    8·2 answers
  • Iron-rich minerals in rock pointed in one direction and then switched to the exact opposite direction. This supports what idea?
    14·1 answer
  • In the skeletal system, which are the two main tissue responsible for structural support in the body.​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!