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
Darya [45]
3 years ago
7

In a BB x bb cross

Biology
2 answers:
Anna71 [15]3 years ago
5 0

Answer:

a. 100% of the offspring will have the Bb genotype

Explanation:

In a BB x bb cross, the one with BB genotype produces B gamete, while the other only produces b gamete.

Therefore, the zygote in this cross has Bb genotype.

Nikitich [7]3 years ago
5 0

Answer:

a.

100% of the offspring will have the Bb genotype

Explanation:

This cross involves a single gene that has two alternative forms called ALLELES. One allele is 'B' and the other is 'b'. In the cross, both parents are purebreeding or homozygous i.e. they contain identical alleles for a particular trait (BB and bb). Therefore, according to Mendel's law of segregation, the alleles of each parent will separate into gametes during meiosis.

Parent 'BB' will produce gametes containing allele 'B' while parent 'bb' will produce gametes containing allele 'b'. Each gametes will then combine randomly. Since only gametes B and b are produced by each parent, all the offsprings produced will have a heterozygous genotype: Bb. Hence, 100% of the F1 offsprings will possess Bb genotype.

You might be interested in
Penguins and orcas are both black and white, have developed fins for rapid swimming and are able to tolerate cold water, but pen
fiasKO [112]

Answer:

Analogous structures

Explanation:

Analogous structures are similar structures that evolved independently in two living organisms to serve the same purpose.

Analogous structures are examples of convergent evolution, where two organisms separately have to solve the same evolutionary problem – such as staying hidden, flying, swimming, or conserving water – in similar ways. The result is similar body structures that developed independently.

In the case of analogous structures, the structures are not the same, and were not inherited from the same ancestor. But they look similar and serve a similar purpose.

For example, the wings of an insect, bird, and bat would all be analogous structures: they all evolved to allow flight, but they did not evolve at the same time, since insects, birds, and mammals all evolved the ability to fly at different times.

8 0
3 years ago
Read 2 more answers
Which measurement helps check the ecological issue of global warming that the world is currently facing?Select one of the option
Harman [31]
A carbon footprint measurement helps check the ecological issue of global warming that the world is currently facing. The correct answer is A. 
8 0
3 years ago
Read 2 more answers
Wrong, its the electron transport chain
PilotLPTM [1.2K]
Not a question. Please refrain from unnecessary post.
8 0
4 years ago
In 3-4 sentences, explain how Waste Management is contributing to conservation efforts.
tekilochka [14]

Answer:

Recycling saves energy, helps keep materials out of landfills and incinerators, and provides raw materials for the production of new products. It converts organic materials, like food waste and yard trimmings, into a valuable soil amendment that contributes to soil health and keeps organic wastes out of landfills.

Explanation:

Recycling saves energy, helps keep materials out of landfills and incinerators, and provides raw materials for the production of new products. When waste cannot be prevented, recycling is the next best option. Recycling is more than extending the life of landfills. It is about making the best use of the resources we have available and conserving those resources for future generations. It is about conserving water, energy, land and raw materials.

Composting is recycling for organics. It converts organic materials, like food waste and yard trimmings, into a valuable soil amendment that contributes to soil health and keeps organic wastes out of landfills.

7 0
3 years ago
Write a paragraph on testing probability
VashaNatasha [74]

Explanation:

Probabilities are described as ratios of favorable event outcome to the total number of event outcomes.

This is written as...

P (E) =\frac{n(E)}{n(S)} \\

where...

E= the number of times the event occurs

S= the number of trials

In biology experiments, hypotheses are formed based on research questions, and tested with the use of variables  to provide a particular outcome. Statistics allows for testing data for consistency with the hypothesis, while statistical probability testing can be used in experiments to determine a range of outcomes, from genetic inheritance, evolutionary rates to theoretical experimental results.

In these statistical models, probability distributions are functions that give probabilities for certain event outcomes within an experiment (a set of trials). These may be either continuous, taking a value within a range of two numbers; or discrete, which may be either of two specified values. Discrete probability distributions list each value that a random variable may possibly take on.

Further Explanation:

For example, two types of probability distributions are employed in experimental biology:

Binomial distributions, which are discrete distributions,  provide probability of a certain number of successful events for x  a random variable, in a specific number of trials, n; here, the probability of success of an individual trial is constant at P and only one of two outcomes are possible- this is sampling with replacement.

where...

b(x;  n, P)-the probability that an experiment of n trials results in x successes

nCx- the number of combinations of n things at r time

b(x;  n, P) = [ nCx ]* P^{x}  * (1-P)^{n-x}\\

<em>This is often used in determining potential outcomes before data collection.</em>

A type of continuous distribution, the student's t-test, compares standard deviations and means from two sets of samples or groups to check for significant differences between them.

t= \frac{(x_{1} - x_{2}) }{\sqrt{(\frac{(S_{1}) ^{2} }{n1} }+ (\frac{(S_{2}) ^{2} }{n2 }}

where...

  • x1 and s1 are the mean and standard deviation of sample 1 respectively
  • x2 and s2 are the mean and standard deviation of sample 1 respectively  
  • n1 and n2 are sample sizes in samples 1 and 2 respectively

The null and alternate hypotheses typically theorize the likelihood and significance of certain event outcome probabilities. Critical values of t, along with degrees of freedom are used to determine a range of probable outcomes; probability or p- values along with this range, are used to determine whether either hypothesis is rejected or accepted.

<em>For instance, significant differences between an experimental control and a specific treatment group would show that these occurrences are not due to sampling errors or random chance...</em>

Learn more about calculating probability at brainly.com/question/4021035

Learn more about calculating event probability at brainly.com/question/6649771

#LearnWithBrainly

5 0
3 years ago
Other questions:
  • A client who has calcium phosphate kidney stones tells the nurse, "tell me what i can do, so that i never have this pain again."
    15·1 answer
  • Deduce how two genes for different traits that are on the same chromosome can fail to be inherited together.
    12·1 answer
  • What happens when altitude decreases air pressure?
    5·1 answer
  • A dna molecule is cut with two different restriction enzymes known to cleave it only once each. after gel electrophoresis, three
    10·1 answer
  • Which states of water can u find in your home
    6·1 answer
  • How does the structure and function of cells vary?
    14·2 answers
  • The theory of evolution may have seemed reasonable when it was introduced because the complexity of the living cell was not unde
    13·1 answer
  • The goal of meeting economic and humans needs is to improve blank of life
    12·1 answer
  • Someone please me please help meeee!!! It’s due at 2 please help me
    7·1 answer
  • Which of the following food groups does the food produced belong?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!