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
kenny6666 [7]
3 years ago
14

In sheep, white is due to a dominant gene (W), black to its recessive allele (w). A white ewe mated to a white ram produces a bl

ack lamb. If they produce another offspring, could it be white? If so, what are the chances of it being white? List the genotypes of all animals mentioned in this problem.
Biology
1 answer:
dedylja [7]3 years ago
8 0

Answer:

Yes, 75%

Explanation:

Since the first offspring produced between the ram and the ewe was black you can determine that both sheep have a recessive and dominant allele. Both of the parent's genotypes would be Ww, this is because they both have the white phenotype and they were able to produce a black offspring. Since both parents have a genotype of Ww the probability of a black offspring being produced is 25% and 75% for a white lamb.

You might be interested in
example of a decomposer and explain what would happen if decomposers were absent from a forest ecosystem
allsm [11]
If the a decomposer were absent from the forest, everything would just pile up onto one another and never be returned to the Earth. 
6 0
3 years ago
Read 2 more answers
Study the diagram of the selectively permeable membrane below.
sveta [45]
There’s no diagraaaammmmm.
4 0
3 years ago
Describe the characteristics and classification of seedless vascular and nonvascular plants
Lady bird [3.3K]

Answer:

Vascular plants, also known as tracheophytes, are plants found on land that have lignified tissues for conducting water and minerals throughout the body of the plant.

1. These lignified tissues are also called vascular tissue and consist of water-conducting xylem tissue and food-conducting phloem tissue.

2. Vascular tissue forms a central column, also called stele, through the plant axis for the transport of different substances.

3. Vascular plants are said to have a true stem, leaves, and roots due to the presence of vascular tissues.

4. The root is a true root that enables the plant to anchor onto the soil and gets nutrients from it.

5. The leaves are broad and have stomata that work for gas exchange and support transpiration.

6. The stem of vascular plants is multilayered with vascular tissue that helps in the protection and conduction of food and water.

7. The arrangement of these issues might be different in a different group of plants as it depends on the pattern of division of cells.

8. The xylem is composed of non-living matter, tracheids, and vesicles, hardened by lignin that provides a stiff structure to the tissue. 9. The phloem, on the other hand, contains living sieve elements that are not lignified.

10. Vascular plants are capable of surviving on land due to their ability to transport food, water, and mineral to different parts of the plant by creating pressure through the tissues.

11. Besides, they also have several modifications that facilitate their survival on land.

12. Another essential characteristic of vascular plants is that the principal generation phase in these plants is the sporophytic phase where they produce diploid spores.

13. Vascular plants are tall and large in size compared to the non-vascular plants because of their ability to transport necessary substances to all parts of the body via vascular tissue.

14. It is believed that vascular plants are a more evolved version of non-vascular plants and thus came later in the evolutionary history.

15. Vascular plants are divided into two groups; non-seed plants or lower vascular plants or cryptograms and seed plants or higher vascular plants or phanerogams.

16. The lower vascular plants include plants like ferns that although are adapted to survive on land still have some characteristics of their aquatic ancestry. These plants belong to the group Pteridophyta.

17. The higher vascular plants are numerous and extremely diverse and are further divided into different subgroups.

18.Some examples of vascular plants include maize, mustard, rose, cycad, ferns, clubmosses, grasses, etc.

6 0
3 years ago
Which of the following statements are false?
bixtya [17]
The second one is worng
3 0
3 years ago
Match the organ to the number showing the order of blood flow in the circulatory system.
seraphim [82]

er:

Explanation:

In the lungs CO2 is removed from the blood and send out the body where we exhale

5 0
3 years ago
Other questions:
  • What causes proinsulin to be converted to insulin?
    12·1 answer
  • A scientist is interested in comparing the age of a rock with other rocks. By doing
    5·1 answer
  • What are 4 questions to understand behavior
    8·1 answer
  • Choose the correct example of response and its explanation below.
    13·1 answer
  • Flatworms have a concentration of nerve tissue and organs in one end of the body.what is the name of this characteristic?
    11·2 answers
  • Read the scenario below and answer the question that follows.
    10·1 answer
  • Some flowering plants appear to have offspring that have traits that are intermediate between those of the parents. Which type o
    13·1 answer
  • The type of RNA that ribosomes are made of.
    14·1 answer
  • The heart is the major organ of the circulatory system. Which part of the body is responsible for delivering de-oxygenated blood
    11·1 answer
  • Pack ice forms when frozen
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!