Answer:
Asexual is reproduction with one parent (single celled organisms)
Sexual is reproduction with two parents
Explanation:
<h2>
<u>Asexual reproduction</u> </h2>
is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes and almost never changes the number of chromosomes. Asexual reproduction is the primary form of reproduction for single-celled organisms such as the archaebacteria, eubacteria, and protists.
<h2>
<u>Sexual Reproduction</u></h2>
Sexual reproduction is a form of reproduction where two morphologically distinct types of specialized reproductive cells called gametes fuse together, involving a female's large ovum (or egg) and a male's smaller sperm. Each gamete contains half the number of chromosomes of normal cells.
Answer:
The correct option is A) 1, 2, 3, 4, 7
Explanation:
As the walls of the cells are narrow and have microvilli, we can predict that the phenomenon of transferring materials by any means such as active transport might be occurring in the tissue.
Every tissue will have an epithelium and since the tissue has a single layer of cells only we can predict that the cells might be having a simple epithelium.
The presence of uni-layer or single cells also makes us infer that the tissue has columnar epithelium.
The presence of microvilli also suggest that secretion by exocytosis might be occurring in these tissues.
Answer:
The dominant curled wing allele is also a recessive lethal.
Explanation:
If we look at the F2 ratio we see that :
curled wings: straight wings= 160:80
=2:1
Hence, if curled wings is considered to be a dominant trait then Curled wings * straight wings
Dd x dd
Punnet square will be as follows :
d d
D | Dd | Dd
d | Dd | dd
Hence in order to get F2
Dd x dd
Punnet square will be the same as above if the F1 cross is Dd* Dd
D d
D DD Dd
d Dd dd
if DD is lethal then the ratio is
Dd:dd=2:1
that is curled wings: straight wings=2:1
Hence, The dominant curled wing allele is also a recessive lethal.
Answer:
the cell would lack genetic material
