Is Pollen Haploid Or Diploid
Pollen grains are male gametophytes and are produced by microsporogenesis. The diploid pollen mother cells in the microsporangium divide by... View Article
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Why Okazaki Fragments Are Formed
Okazaki fragments are short DNA nucleotide sequences. These are discontinuously synthesized and further associated by the ligase enzyme in order... View Article
Is Grass A Flowering Plant
Yes, grass is a flowering plant. This conveys that grasses are primarily self-pollinated and wind pollinated. They are rarely pollinated... View Article
When Embryo Attaches To The Lining Of The Uterus
The implantation, or attaching of embryos into the lining of the uterus takes place 6-10 days after fertilization. In the... View Article
What Is Embryo Transfer
Embryo transfer is the last step in the IVF (in vitro fertilization) process. In this process of assisted reproduction, embryos... View Article
What Is Embryo Culture
On a specific nutrient medium, it is a technique to cultivate an embryo in an aseptic environment for its optimal... View Article
How Many Male Gametes Are Produced By Pollen Grains
Two male gametes. Two male gametes are produced from a single pollen grain in flowering plants. Pollen grains released from... View Article
How Do The Pollen Grains Of Vallisneria Protect Themselves
In Vallisneria, pollination occurs through the mode of water. Hence, pollen grains are wrapped by mucilaginous coating to protect pollen... View Article
Why Is Banana Considered A Good Example Of Parthenocarpy
Parthenocarpy is the process of development of fruit in the absence of any prior fertilization. Banana produces fruits as it... View Article
What Can Prevent Implantation Of Embryo
Some reasons why an embryo fails to implant itself are – endometriosis, immature egg, resistance offered by progesterone, chronic endometritis,... View Article
Why Is The Offspring Of Asexual Reproduction A Clone
Since only one parent is involved in asexual reproduction, the offspring produced is genetically identical to the parent cell. Since... View Article
How Do Insects Help In Pollination
Insects pollinate flowers when they go in search of food. Flowers produce a sugary liquid called nectar which many insects... View Article
How Embryo Is Formed
The embryo in humans starts to take form after four days of fertilization. Initially, the solid ball of cells, a... View Article
Why Pollen Grains Are Well Preserved As Fossil
The presence of sporopollenin causes them to be well-preserved. Pollen grains have an evident two-layered wall wherein exine is the... View Article
Why Are Pollen Grains Produced In Enormous Quantity In Maize
It is because pollination in maize is by wind (Anemophilous). Hence, they are produced in larger quantities to ensure pollination.... View Article
Which Vector Can Clone A Small Fragment Of Dna
The answer is plasmids. Plasmids are extra chromosomal, autonomously replicating circular, double-stranded DNA molecules. They naturally occur in some yeasts... View Article
How Many Days After Period Is Frozen Embryo Transfer
Most likely, embryos are frozen five or six or seven days after the retrieval of the egg. In some other... View Article
What Is Pollen Allergy
Pollen allergy affects the mucous membrane of the eyes, nose etc. It is an allergic reaction that is typically characterized... View Article
What Is A Fragment
A type of asexual reproduction, fragmentation, is wherein an entity splits into fragments. In other words, it is a large... View Article
What Is Axillary Bud
Formed at the junction of leaf and stem, axillary buds are embryonic shoots found in the axil of a leaf.... View Article
