In fruit flies, the allele for red eyes, R, is dominant. Which genotype represents a white-eyed male fruit fly?

Answers

Answer 1
Answer: It would be "rr". This is due to the fact that recessive genes, like white-eyed, have to have a genotype with both recessive to show up.
Answer 2
Answer:

The following choices are given;

A. XrXr. B. XrY. C. XRY D. XRXr

The answer is B. This is because the presence of the Y chromosome determines gender- which is male. In addition, it carries few genes than the X sex chromosome. Therefore, in this case, the X chromosome brings in the receive allele for eye color while the Y chromosome has no corresponding allele.

In most diploid organisms, they are two types of alleles for most genes which each on each set of chromosomes and at the same loci. In most cases, one allele is dominant over the other meaning that its presence masks the effect of the recessive allele.  In the absence of the dominant allele, the recessive allele is expressed . Usually, the recessive gene is disadvantageous to the individual.  



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Sea food is a rich source of?? a) fluorine b) potassium c) calcium d)iodine
Which of these statements BEST defines vestigial organs?a. vital organs that are functional in all organisms of a lineage b. vital organs that are functional only in alternate generations of a lineage c. redundant organs present in an organism, which have been functional in the organism’s ancestors d. redundant organs present in an organism, which will be functional in the succeeding generations of the lineage
A DNA segment is changed from -AATTAG- to -AAATAG-. This is a_______.

In what way can open-mindedness interfere with scientific progress?a. It can prevent the development of new ideas.
b. It can lead to the acceptance of untested ideas.
c. It can lead to too much critical evaluation of ideas.
d. It can prevent the development of scientific consensus.

Answers

The correct answer is option b. It can lead to the acceptance of untested ideas.

The open mindedness can be defined as the ability to believe on an idea reported by a new evidence. The open-mindedness can cause the acceptance of the wide range of ideas. Open mindedness leads to the acceptance of an idea with respect to a new evidence, these evidences may or may not be valid. Hence, it can lead to acceptance of ideas, which are not tested.

The answer is C. Too much open-mindedness leads to too muchconsideration during evaluation of ideas. This extra considerationleads to extra delays and hampers forward progress and acceptance ofideas. While open-mindedness is not necessarily a bad thing, comparedto the other answers given, too much of this one would lead to the mostinterference of progress.

During what stage of the cell cycle is DNA copied?

Answers

DNA isn't really copied, it's more so split into 2 parts.

DNA is split into 2 parts during mitosis, more exactly the 5th stage called anaphase. chromosomes, which hold DNA< are split into 2 (genetically identical) groups, and each respective group goes to one spindle or another, readying for the last phase of mitosis and eventually cytokinesis.

How did the diversity index value vary from the chocolate candies and fruit candies

Answers

m&ms are more diverse then skittles.
hope this help. 

Final answer:

The diversity index can be viewed as a statistical representation of diversity based on consumer's candy preference. It can be derived from the taste test data. A higher value may represent an equal preference for fruit and chocolate candies, while a lower value may indicate a dominant preference for one candy type.

Explanation:

The diversity index value in this context may refer to the difference in responses or preferences for the different candy types, namely chocolate candies and fruit candies. However, the given data on the weight of candies and the preference of consumers (children versus adults) for a new chocolate bar doesn't directly provide a diversity index value for candy types.

Diversity index is a mathematical measure that reflects how many different types there are in a dataset, and simultaneously takes into account how evenly the basic entities are distributed among those types. The value can range from 0 (no diversity) to 1 (complete diversity).

If the diversity index is being derived from the taste test, it will depend on how many children and adults prefer chocolate vs fruit candy. A higher diversity index might indicate that preferences for candy type is evenly spread across the population, while a lower diversity index could suggest that there's a dominant preference for one type of candy over the other.

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The longest and largest bone of the upper limb is the ________

Answers

Answer:

humerus.

Explanation:

Here are some key points about the humerus:

1. Length: The humerus is the longest bone in the upper limb, measuring about one-third of the length of the entire upper limb.

2. Structure: It is a long bone that consists of a shaft and two ends. The shaft is cylindrical in shape and has a slightly curved appearance. The upper end of the humerus forms part of the shoulder joint, while the lower end articulates with the bones of the forearm at the elbow joint.

3. Articulations: The humerus forms two important joints in the upper limb. The upper end articulates with the scapula (shoulder blade) to form the shoulder joint, also known as the glenohumeral joint. The lower end articulates with the radius and ulna bones of the forearm to form the elbow joint.

4. Function: The humerus plays a crucial role in various movements of the upper limb. It allows for flexion, extension, abduction, adduction, and rotation of the arm. These movements are essential for activities like lifting, pushing, pulling, and throwing.

5. Muscles attachment: The humerus provides attachment points for several muscles involved in upper limb movements. These include the deltoid, biceps brachii, triceps brachii, and many others.

In summary, the humerus is the longest and largest bone of the upper limb. It supports the arm and enables a wide range of movements in the shoulder and elbow joints.

The authoritarian parent can be described as __________ and __________.A.
unloving . . . abusive
B.
firm . . . flexible
C.
lenient . . . inconsistent
D.
restrictive . . . controlling

Answers

The correct answer is D, restrictive and controlling. Authoritarian parents impose strict and inflexible standards on their children. They can be distinguished from authoritative parents, who are firm but use flexibility in dealing with their children, and with permissive parents, who are lenient and inconsistent in their rules for children. While authoritarian parenting has been shown to have some negative consequences, it is not necessarily abusive or unloving.

The authoritarian parent can be described as restrictive and controlling.

Who are authoritarian parent?

Authoritarian parents are those parents who are usually, frequently and most of the time exercise strictness and high levels of discipline on the upbringing of their children.

The authoritarian parent possess some of the qualities below when dealing with their children:

  • They are usually impatient
  • They give few choices to their children
  • They have high expectations from their children
  • Always punishing for every single mistake
  • Mistrusting
  • They are also always unwilling to negotiate

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Which occurs directly before forming a hypothesis?

Answers

you have to develop a testable question before forming your hypothesis.

Final answer:

Before forming a hypothesis, an individual firstly makes an observation and formulates a question. Conducting some research follows, which aids in the formation of a hypothesis. A hypothesis, which is an educated guess, predicts the outcome of a situation.

Explanation:

The steps leading up to the formation of a hypothesis typically involve first making an observation about the natural world. This could include noting a trend, pattern or single event. From this observation, questions might arise that the observer seeks to answer. Following observation and question formulation, the next step is often to conduct some research about the topic which can inform the creation of a hypothesis. A hypothesis is a testable statement that predicts the outcome of a situation given certain conditions, often presented in an "If... then..." format. It serves as an educated guess to explain the initial observation.

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